user254: Do people (monks and/or scholars) have a sense of how old (or relatively old) each sutta is in the Pali canon: i.e. which suttas are considered "earlier" or "later"?
If not for individual suttas, how about for whole Nikayas: are some Nikayas viewed as being probably earlier and/or later?
If the answer is "yes", is there a reference on this subject suitable for a non-expert ("suitable" meaning "readable" and "not controversial, generally accepted by other experts" and preferably "identifies the evidence on which it bases its conclusions" ... and preferably also translated into English)?
How does this (notion of some progressive history of earlier and of later suttas) fit with the Buddhist councils? Were different suttas adopted at different councils? The Wikipedia article about the councils gives me the (perhaps wrong) impression that all suttas were recorded in the first council. Do differences arise from when the suttas were transcribed as translated rather than from when they were accepted into the remembered/oral canon?

Piya Tan's analysis of DN 30 includes text like the following:

Historically,
  the Buddha has none of these superhuman marks, but his authenticity and spirituality are in no way
  diminished or affected. They are at best mythical marks of the fruits of his past good karma, as detailed in
  the Lakkhaa Sutta (D 30).12 We will now examine how and why these marks arose.
The earliest sources of a full list of the thirty-two marks are the following
  suttas: ...
Earliest allusions: ...

Should I take that as implying that he has a reference that tells him which are the "earliest" suttas? Or is he saying there that all suttas are the earliest source?
Taking this paper as an example, should I infer that the current state-of-the-art is that some scholars try to decide what's early and late by comparing different versions (e.g. Pali and Chinese) of a sutta: but that though with a lot of work they try that for one sutta, such hasn't been done for most suttas and there's no reference of dates (of specific suttas) nor even generalization (e.g. about Nikayas).
I think I've read various people mention other examples too, of topics evolving: for example that earliest suttas talks about fewer than five lay precepts.

user254: Wikipedia's Atthakavagga and Parayanavagga says,

Dating
Some scholars regard the Aṭṭhakavagga and the Pārāyanavagga as being considerably earlier in composition than the bulk of the canon, and as revealing an earlier form of Buddhism.[1] They are regarded as earlier because of elements of language and composition, their inclusion in very early commentaries, and also because some have seen them as expressing versions of certain Buddhist beliefs that are different from, and perhaps prior to, their later codified versions.[2] In this thinking, the Pārāyanavagga is somewhat closer to the later tradition than the Aṭṭhakavagga.[3] The Khaggavisānasutta (Rhinoceros Sutra), also in the Sutta Nipāta, similarly seems to reveal an earlier mode of Buddhist monasticism, which emphasized individual wandering monastics, more in keeping with the Indian sannyāsin tradition.
In 1994, a group of texts which are the earliest Indian manuscripts discovered were found in Gandhara.[note 2] These texts include a relatively complete version of the Rhinoceros Sutra and textual material from the Aṭṭhakavagga and Pārāyanavagga.

Translations of these suttas are listed here on Access to insight (Chapters 4 and 5 of the Sutta Nipata within the Khuddaka Nikaya).
Each chapter has an introduction by Thanissaro Bhikkhu (here and here). The former says that evidence for its being earlier than the rest of the canon is weak; the latter says (without explanation),

There is evidence that these sixteen dialogues were highly regarded right from the very early centuries of the Buddhist tradition.


Wikipedia also says of the Rhinoceros Sutra,

The Rhinoceros Sutra has long been identified, along with the Aṭṭhakavagga and Pārāyanavagga, as one of the earliest texts found in the Pāli Canon.[1] This identification has been reinforced by the discovery of a version in the Gandhāran Buddhist texts, the oldest Buddhist (and, indeed, Indian) manuscripts extant. It also exists in a Buddhist Hybrid Sanskrit version. The early date for the text along with its rather unusual (within community-oriented Buddhism) approach to monastic life have led some scholars to suggest that it represents a holdover from a very early stage of Buddhism.

The Rhinoceros Sutra is in the first chapter of the Sutta Nipata within the Khuddaka Nikaya, i.e. here on Access to insight.

user5442: In his book, "A History of Mindfulness", Bhikkhu Sujato claims that the Samyutta Nikaya is the earliest Nikaya collection. The major tool of his argument is the comparison of the congruences of each Theravada Nikaya with the corresponding Agama of the Sarvastivada tradition. The Madhyama Agama and the Samyukta Agama of Sarvastivada are preserved in the Chinese Tripitaka while a substantial part of the Sanskrit Dirgha has been recently discovered in Afghanistan. Sujato notices that among these three pairs, the Samyutta Nikaya and Samyukta Agama pair shows the greatest structural congruence while the other two pairs are structurally very dissimilar. From this he concludes that the Samyukta had been largely closed before the separation of Vibhajyavada (Theravada) and Sarvastivada. Since the Sarvastivada counterpart of the Anguttara Nikaya is lost to us, this comparison method cannot say anything about its relative dating. But Sujato thinks that the Anguttara is anyway later than Samyutta since it was composed using the small-sized suttas that could not be included in the thematic system of the Samyutta.
Sujato's conclusion about the Samyutta's antiquity was anticipated by the Taiwanese scholar Yin Shun who argued that the contents of the Samyutta fit neatly with the first three angas (namely, sutra, geya and vyakarana) of the nine-anga classification system of the canon. According to him, the authenticity of the Samyutta in ancient times is also supported by the fact that the author of Yogacarabhumisastra, the definitive text of the Yogacara school, included an extensive commentary on the sutra-anga portion of the Samyukta in it.
So, considering the research of Bhikkhu Sujato and Yin Shun, one can say that the sutra-anga portion of the Samyutta is the oldest part of the Sutta Pitaka, apart from probably the Atthakavagga and the Parayanavagga of Sutta Nipata.
N.B. - Yin Shun has not written in English but a summary of his research can be found in Choong Mun-keat, "The Fundamental Teachings of Early Buddhism".

user8157: I imagine the 1st three suttas of the Buddha (SN 56.11, SN 22.59 & SN 35.28) are universally held to be as such. These 1st three suttas are exclusively focused on individual practise for renunciates (those that had left the household life) & here-&-now realisation. As time passed, it appears likely the scope of the Buddha's audience increased and eventually the scope of the audience of the Buddhist religion increased. Thus the transition from very precise & supramundane suttas using very precise language to more broad & worldly suttas using less precise language would logically be indicative of earlier versus later discourses. 
For example, the Digha Nikaya would likely include many later suttas because DN 15 departs from the usual description of Dependent Origination and because the DN contains suttas about past lives, past Buddhas and the origin of the physical world, which are obviously alien to the subject matter of the 1st three suttas & alien to the core message. 
Even the topic of the Three Knowledges, while probably spoken by the Buddha himself, indicates a description of enligthenment given at a later period for a broader audience (since the language contained within is multi-interpretable). That the Three Knowledges are often spoken to Brahmans & laypeople support this view. 

user-1: Bhikkhu Sujato & Bhikkhu Brahmali are of the following opinion (in The Authenticity of the Early Buddhist Texts):


Early Buddhist Texts [EBTs]: Texts spoken by the historical Buddha and his contemporary disciples. These are the bulk of the Suttas in the main four Pali Nikāyas and parallel Āgama literature in Chinese, Tibetan, Sanskrit, and other Indian dialects; the pātimokkhas and some Vinaya material from the khandhakas; a small portion of the Khuddaka Nikāya, consisting of significant parts of the Sutta Nipāta, Udāna, Itivuttaka, Dhammapada, and Thera- and Therī Gāthā. The “Suttas” in a narrow sense are those passages that are directly attributed to the Buddha himself (and to a lesser extent his direct disciples).
Non-EBTs: Abhidhamma, Mahāyāna Sūtras, Buddha biographies, historical chronicles, as well as the majority of the Khuddaka Nikāya and
  the Vinaya Piṭaka. The Jātakas are non-EBT, but derive from stories that in some cases may even be earlier than the Buddha. Commentaries and other late texts may contain some genuine historical information alongside much later invention.


If I recall correctly, Bhikkhu Analayo has a similar view as well, though he considers only the verses of the suttas in the Khuddaka EBT set to be EBT, and not the contextual text that precede them.
Back to Sujato & Brahmali, they also write (references elided):

Even in the stylistically oldest part of the Khuddaka Nikāya, such
  as the Sutta Nipāta, the Udāna, and the Dhammapada, there is substantial divergence between the schools. This is despite the fact that these texts do have a common core, which is found across the different traditions. With texts such as the Abhidhamma, despite a small common core, the divergence is even greater. But the vast majority of Buddhist texts are exclusive to the individual schools and do not have any parallels at all.
[...]
Finally, it has also been proposed that the first three of the 9 aṅgas
  [of the Saṁyutta nikaya] should be identified with the proto-Saṁyutta, based on a statement by Asanga and on the pattern of distribution of texts within these collections.

"should I infer that the current state-of-the-art is that some scholars try to decide what's early and late by comparing different versions"
The comparative studies are also used to shed light on the age of discourses. But the texts themselves may give some clues as to their age by analysis of style, metre of verses or vocabulary. For example, a text may use terms that are reminiscent of a certain period, or use terms that are not found in a larger body of text that is presumed to be old. 
Also:

I think quotes found in commentaries are too used to estimate how old is a passage. 
errors, which are usually copied along the chain might be used to place a text in a timeframe.
geopolitical descriptions contained in the text may be used, together with archeology, to position it in time, as well as inscriptions found in ancient artifacts.

Anyway, this book is probably the best starting point to explore these questions. It's full of references, and also presents the view of researchers who disagree with the authors (thus, the reader gets to know the "who is who" list in the [western?] scholastic community).
"How does this (notion of some progressive history of earlier and of later suttas) fit with the Buddhist councils? Were different suttas adopted at different councils?"
As I understand, the traditional position is that the nikayas were fixed at the 1st council. Scholars, however, often talk about a later moment where a canon is "closed to addition". Certainly the existing parallel nikayas do not agree verbatim, so the historical question of the original nikayas spoken at the 1st council remains.
"Do differences arise from when the suttas were transcribed as translated rather than from when they were accepted into the remembered/oral canon?"
I think there are differences of script in manuscripts, but I don't know much more than that.
Finally, the presentation "The ur-text of the Pali Tipiṭaka" by Alex Wynne, might be of interest.

user295: I would hold the view that all Theravada Suttas were recorded in the 1st council. There was a split that happened in the 2nd council which resulted in schism which lead to Theravada and Mahayana. The Mahayana school did develop new Suttas but also preserved the old in the Agamas.
Many scholars referring to figure out if a Sutta is early or later compares these Theravada and Agama source this are very similar but having disimilarities also. If they tally they rationalize this is an early source. If there is any addition they consider this perhaps a later composition. I would personally believe if something is missing in the Agamas this would have been transmission error as the Mahayana school was not as metriculers as to preserving wording as the Theravada tradition. (Since there are many later additions in the Mahayana school.) Also Mahayana texts were translations whereas Pali language was close to or same as Magahi which was spoken by the Buddha himself. So here also discrepancies could have arose.
After the 3rd council the likelihood of changes to the Theravada Tripitaka would have been very small as Buddhism spread to to multiple location which survived in countries like Burma. If there would have been discrepancies then the version in the countries would diverge.
In the 4th council the Tripitaka was put in writing. This would have eliminated any room to discrepancies as this was also not confined to one country. Any changes would lead to discrepancies.
The Theravada councils were more heard to collect compare all the sources and redistribute the aggregate source than new compositions.
Also in the case of the Bahudhātuka-sutta certain parts were missing in the chinese version which prompted to ascertain than this is a later composition by the Theravada school which would resonate well with modern through with equal rights to women. I feel this seams like biases in the research there the research was bent to fit modern thought and outlook. Sometimes it might be personal perceptions backed by evidence and logic to rationalize. 
Also taking the intersection than the union may not be the way to go in my opinion as Satipatthana Mula by Piya Tan this would leave out some aspects of the Sutta which does make practical sense. Also note certain areas in this analysis does have common areas from more than one independent school which indicate certain parts may have been lost than composed.
At least in the Theravada school miss attributing anything to the Buddha or changing the words would have been very much feared hence would have been preserved well. 
Among the current editions the discrepancies are very rare, but there are some discrepancies. One example is Pacalā Sutta.
Ultimately what is the Dhamma and what is not should be settled not at intellectual speculation but at experiential level and practice wherever possible, though some insights may not arise in every one. Any discrepancies regarding the practice should be verified by the practice.

user10100: I can't translate the whole of question, however I tried to answer as I can do.

Layers of pali literature already being in buddha-living-period.
There are many pali literature in buddha's time, such as buddha's literature, sāriputta's literature, mahākaccāna's literature, upāli's literature, etc. Because every mahāsāvaka have there own students.
But the most influential literature are buddha's literature and sāriputta's literature.
4 nikaya are buddha's literature, most of the others cannon are sāriputta's literature, because he is the one who buddha said "sāriputta is the best teacher who can teach like me". So everyone always go to meet sāriputta to listen his teaching, in his literature. But if someone need buddha's literature, they will go to meet buddha or ānanda, who is the best in sutta memorizing.
So, abhidhamma is difference from sutta, because commentary said "abhidhamma is memorized by sāriputta". And the other buddha's sāvaka book also have literature look like sāriputta's literature because everyone in buddha-living-period often go to learn dhamma with sāriputta (see:mahāgosiṅgasālasuttaṃ).
7 Vinaya-pitaka, is  memorized by  Upāli and his students. He also author some path of parivāra because buddha said in tipitaka (a.n.) "Upāli is the best vinaya-memorizer" (vinayadharānaṃ yadidaṃ upāliฯ).
Suttanta-pitaka is memorized by Ānanda. But in 1st saṅgayanā, 500 arahanta decide to separate whole sutta to 4 nikya.Then they gave each nikya to a group of 4 etadagga and his student to especially memorize it.
Who are the members, of group of 4 etadagga?  Ānanda and his students (tn), Sāriputta's students (mn), Kassapa and his students (sn), Anuruddha and his students (an). (The others have learned and memorized dhamma, too, but buddha said "ānanda is the best", so everyone need him in 1st saṅgayanā).
Abhidhamma-pitaka, paṭisambhidāmagga, niddesa, buddhavaṃsa, cariyā-pitaka, except kathāvatthu of moggalliputta, is learned by Sāriputta, But then they are memorized by every arahanta, because everyone in buddha-living-period often go to listen Sāriputta (see:mahāgosiṅgasālasuttaṃ).
Origin: http://www.tipitaka.org/romn/cscd/s0101a.att0.xml

254: <p>Do people (monks and/or scholars) have a sense of how old (or relatively old) each sutta is in the Pali canon: i.e. which suttas are considered "earlier" or "later"?</p>

<p>If not for individual suttas, how about for whole Nikayas: are some Nikayas viewed as being probably earlier and/or later?</p>

<p>If the answer is "yes", is there a reference on this subject suitable for a non-expert ("suitable" meaning "readable" and "not controversial, generally accepted by other experts" and preferably "identifies the evidence on which it bases its conclusions" ... and preferably also translated into English)?</p>

<p>How does this (notion of some progressive history of earlier and of later suttas) fit with the <a href="https://en.wikipedia.org/wiki/Buddhist_councils" rel="nofollow noreferrer">Buddhist councils</a>? Were different suttas adopted at different councils? The Wikipedia article about the councils gives me the (perhaps wrong) impression that all suttas were recorded in the first council. Do differences arise from when the suttas were transcribed as translated rather than from when they were accepted into the remembered/oral canon?</p>

<hr>

<p><a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2010/02/36.9-Lakkhana-S-d30-piya.pdf" rel="nofollow noreferrer">Piya Tan's analysis of DN 30</a> includes text like the following:</p>

<blockquote>
  <p>Historically,
  the Buddha has none of these superhuman marks, but his authenticity and spirituality are in no way
  diminished or affected. They are at best mythical marks of the fruits of his past good karma, as detailed in
  the Lakkhaa Sutta (D 30).12 We will now examine how and why these marks arose.</p>
  
  <p>The earliest sources of a full list of the thirty-two marks are the following
  suttas: ...</p>
  
  <p>Earliest allusions: ...</p>
</blockquote>

<p>Should I take that as implying that he has a reference that tells him which are the "earliest" suttas? Or is he saying there that all suttas are the earliest source?</p>

<p>Taking <a href="https://www.buddhismuskunde.uni-hamburg.de/pdf/5-personen/analayo/bahudhatuka.pdf" rel="nofollow noreferrer">this paper</a> as an example, should I infer that the current state-of-the-art is that some scholars try to decide what's early and late by comparing different versions (e.g. Pali and Chinese) of a sutta: but that though with a lot of work they try that for one sutta, such hasn't been done for most suttas and there's no reference of dates (of specific suttas) nor even generalization (e.g. about Nikayas).</p>

<p>I think I've read various people mention other examples too, of topics evolving: for example that earliest suttas talks about fewer than five lay precepts.</p>
 254: <p>Wikipedia's <a href="https://en.wikipedia.org/wiki/Atthakavagga_and_Parayanavagga" rel="nofollow noreferrer">Atthakavagga and Parayanavagga</a> says,</p>
<blockquote>
<p><strong>Dating</strong></p>
<p>Some scholars regard the Aṭṭhakavagga and the Pārāyanavagga as being considerably earlier in composition than the bulk of the canon, and as revealing an earlier form of Buddhism.[1] They are regarded as earlier because of elements of language and composition, their inclusion in very early commentaries, and also because some have seen them as expressing versions of certain Buddhist beliefs that are different from, and perhaps prior to, their later codified versions.[2] In this thinking, the Pārāyanavagga is somewhat closer to the later tradition than the Aṭṭhakavagga.[3] The Khaggavisānasutta (Rhinoceros Sutra), also in the Sutta Nipāta, similarly seems to reveal an earlier mode of Buddhist monasticism, which emphasized individual wandering monastics, more in keeping with the Indian sannyāsin tradition.</p>
<p>In 1994, a group of texts which are the earliest Indian manuscripts discovered were found in Gandhara.[note 2] These texts include a relatively complete version of the Rhinoceros Sutra and textual material from the Aṭṭhakavagga and Pārāyanavagga.</p>
</blockquote>
<p>Translations of these suttas are <a href="http://www.accesstoinsight.org/tipitaka/kn/snp/index.html" rel="nofollow noreferrer">listed here</a> on Access to insight (Chapters 4 and 5 of the Sutta Nipata within the Khuddaka Nikaya).</p>
<p>Each chapter has an introduction by Thanissaro Bhikkhu (<a href="http://www.accesstoinsight.org/lib/authors/thanissaro/atthakavagga.html" rel="nofollow noreferrer">here</a> and <a href="http://www.accesstoinsight.org/lib/authors/thanissaro/parayanavagga.html" rel="nofollow noreferrer">here</a>). The former says that evidence for its being earlier than the rest of the canon is weak; the latter says (without explanation),</p>
<blockquote>
<p>There is evidence that these sixteen dialogues were highly regarded right from the very early centuries of the Buddhist tradition.</p>
</blockquote>
<hr />
<p>Wikipedia also says of the <a href="https://en.wikipedia.org/wiki/Rhinoceros_Sutra" rel="nofollow noreferrer">Rhinoceros Sutra</a>,</p>
<blockquote>
<p>The Rhinoceros Sutra has long been identified, along with the Aṭṭhakavagga and Pārāyanavagga, as one of the earliest texts found in the Pāli Canon.[1] This identification has been reinforced by the discovery of a version in the Gandhāran Buddhist texts, the oldest Buddhist (and, indeed, Indian) manuscripts extant. It also exists in a Buddhist Hybrid Sanskrit version. The early date for the text along with its rather unusual (within community-oriented Buddhism) approach to monastic life have led some scholars to suggest that it represents a holdover from a very early stage of Buddhism.</p>
</blockquote>
<p>The Rhinoceros Sutra is in the first chapter of the Sutta Nipata within the Khuddaka Nikaya, i.e. <a href="http://www.accesstoinsight.org/tipitaka/kn/snp/snp.1.03.than.html" rel="nofollow noreferrer">here on Access to insight</a>.</p>
 5442: <p>In his book, "A History of Mindfulness", Bhikkhu Sujato claims that the Samyutta Nikaya is the earliest Nikaya collection. The major tool of his argument is the comparison of the congruences of each Theravada Nikaya with the corresponding Agama of the Sarvastivada tradition. The Madhyama Agama and the Samyukta Agama of Sarvastivada are preserved in the Chinese Tripitaka while a substantial part of the Sanskrit Dirgha has been recently discovered in Afghanistan. Sujato notices that among these three pairs, the Samyutta Nikaya and Samyukta Agama pair shows the greatest structural congruence while the other two pairs are structurally very dissimilar. From this he concludes that the Samyukta had been largely closed before the separation of Vibhajyavada (Theravada) and Sarvastivada. Since the Sarvastivada counterpart of the Anguttara Nikaya is lost to us, this comparison method cannot say anything about its relative dating. But Sujato thinks that the Anguttara is anyway later than Samyutta since it was composed using the small-sized suttas that could not be included in the thematic system of the Samyutta.</p>

<p>Sujato's conclusion about the Samyutta's antiquity was anticipated by the Taiwanese scholar Yin Shun who argued that the contents of the Samyutta fit neatly with the first three angas (namely, sutra, geya and vyakarana) of the nine-anga classification system of the canon. According to him, the authenticity of the Samyutta in ancient times is also supported by the fact that the author of Yogacarabhumisastra, the definitive text of the Yogacara school, included an extensive commentary on the sutra-anga portion of the Samyukta in it.</p>

<p>So, considering the research of Bhikkhu Sujato and Yin Shun, one can say that the sutra-anga portion of the Samyutta is the oldest part of the Sutta Pitaka, apart from probably the Atthakavagga and the Parayanavagga of Sutta Nipata.</p>

<p>N.B. - Yin Shun has not written in English but a summary of his research can be found in Choong Mun-keat, "The Fundamental Teachings of Early Buddhism".</p>
 8157: <p>I imagine the <a href="http://www.accesstoinsight.org/lib/authors/nanamoli/wheel017.html" rel="nofollow noreferrer">1st three suttas of the Buddha</a> (SN 56.11, SN 22.59 &amp; SN 35.28) are universally held to be as such. These 1st three suttas are exclusively focused on individual practise for renunciates (those that had left the household life) &amp; here-&amp;-now realisation. As time passed, it appears likely the scope of the Buddha's audience increased and eventually the scope of the audience of the Buddhist religion increased. Thus the transition from very precise &amp; supramundane suttas using very precise language to more broad &amp; worldly suttas using less precise language would logically be indicative of earlier versus later discourses. </p>

<p>For example, the Digha Nikaya would likely include many later suttas because DN 15 departs from the usual description of Dependent Origination and because the DN contains suttas about past lives, past Buddhas and the origin of the physical world, which are obviously alien to the subject matter of the 1st three suttas &amp; alien to the core message. </p>

<p>Even the topic of the <a href="https://suttacentral.net/en/iti99" rel="nofollow noreferrer">Three Knowledges</a>, while probably spoken by the Buddha himself, indicates a description of enligthenment given at a later period for a broader audience (since the language contained within is multi-interpretable). That the Three Knowledges are often spoken to Brahmans &amp; laypeople support this view. </p>
 -1: <p>Bhikkhu Sujato &amp; Bhikkhu Brahmali are of the following opinion (in <a href="http://ocbs.org/wp-content/uploads/2015/09/authenticity.pdf" rel="nofollow noreferrer">The Authenticity of the Early Buddhist Texts</a>):</p>

<blockquote>
  <ol>
  <li><p><strong>Early Buddhist Texts [EBTs]</strong>: Texts spoken by the historical Buddha and his contemporary disciples. These are the bulk of the Suttas in the main four Pali Nikāyas and parallel Āgama literature in Chinese, Tibetan, Sanskrit, and other Indian dialects; the pātimokkhas and some Vinaya material from the khandhakas; a small portion of the Khuddaka Nikāya, consisting of significant parts of the Sutta Nipāta, Udāna, Itivuttaka, Dhammapada, and Thera- and Therī Gāthā. The “Suttas” in a narrow sense are those passages that are directly attributed to the Buddha himself (and to a lesser extent his direct disciples).</p></li>
  <li><p><strong>Non-EBTs</strong>: Abhidhamma, Mahāyāna Sūtras, Buddha biographies, historical chronicles, as well as the majority of the Khuddaka Nikāya and
  the Vinaya Piṭaka. The Jātakas are non-EBT, but derive from stories that in some cases may even be earlier than the Buddha. Commentaries and other late texts may contain some genuine historical information alongside much later invention.</p></li>
  </ol>
</blockquote>

<p>If I recall correctly, Bhikkhu Analayo has a similar view as well, though he considers only the verses of the suttas in the Khuddaka EBT set to be EBT, and not the contextual text that precede them.</p>

<p>Back to Sujato &amp; Brahmali, they also write (references elided):</p>

<blockquote>
  <p>Even in the stylistically oldest part of the Khuddaka Nikāya, such
  as the Sutta Nipāta, the Udāna, and the Dhammapada, there is substantial divergence between the schools. This is despite the fact that these texts do have a common core, which is found across the different traditions. With texts such as the Abhidhamma, despite a small common core, the divergence is even greater. But the vast majority of Buddhist texts are exclusive to the individual schools and do not have any parallels at all.</p>
  
  <p>[...]</p>
  
  <p>Finally, it has also been proposed that the first three of the 9 aṅgas
  [of the Saṁyutta nikaya] should be identified with the proto-Saṁyutta, based on a statement by Asanga and on the pattern of distribution of texts within these collections.</p>
</blockquote>

<p><em>"<strong>should I infer that the current state-of-the-art is that some scholars try to decide what's early and late by comparing different versions</strong>"</em></p>

<p>The comparative studies are also used to shed light on the age of discourses. But the texts themselves may give some clues as to their age by analysis of style, metre of verses or vocabulary. For example, a text may use terms that are reminiscent of a certain period, or use terms that are not found in a larger body of text that is presumed to be old. </p>

<p>Also:</p>

<ul>
<li>I think quotes found in commentaries are too used to estimate how old is a passage. </li>
<li>errors, which are usually copied along the chain might be used to place a text in a timeframe.</li>
<li>geopolitical descriptions contained in the text may be used, together with archeology, to position it in time, as well as inscriptions found in ancient artifacts.</li>
</ul>

<p>Anyway, this book is probably the best starting point to explore these questions. It's full of references, and also presents the view of researchers who disagree with the authors (thus, the reader gets to know the "who is who" list in the [western?] scholastic community).</p>

<p><em>"<strong>How does this (notion of some progressive history of earlier and of later suttas) fit with the Buddhist councils? Were different suttas adopted at different councils?</strong>"</em></p>

<p>As I understand, the traditional position is that the nikayas were fixed at the 1st council. Scholars, however, often talk about a later moment where a canon is "closed to addition". Certainly the existing parallel nikayas do not agree verbatim, so the historical question of the original nikayas spoken at the 1st council remains.</p>

<p><strong>"<em>Do differences arise from when the suttas were transcribed as translated rather than from when they were accepted into the remembered/oral canon?</strong>"</em></p>

<p>I think there are differences of script in manuscripts, but I don't know much more than that.</p>

<p>Finally, the presentation "<a href="https://www.youtube.com/watch?v=rxxEdlQc5VM" rel="nofollow noreferrer">The ur-text of the Pali Tipiṭaka</a>" by Alex Wynne, might be of interest.</p>
 295: <p>I would hold the view that all Theravada Suttas were recorded in the 1st council. There was a split that happened in the <a href="https://en.wikipedia.org/wiki/Second_Buddhist_council" rel="nofollow noreferrer">2nd council</a> which resulted in schism which lead to <a href="https://en.wikipedia.org/wiki/Theravada" rel="nofollow noreferrer">Theravada</a> and <a href="https://en.wikipedia.org/wiki/Mahayana" rel="nofollow noreferrer">Mahayana</a>. The Mahayana school did develop new Suttas but also preserved the old in the Agamas.</p>

<p>Many scholars referring to figure out if a Sutta is early or later compares these Theravada and Agama source this are very similar but having disimilarities also. If they tally they rationalize this is an early source. If there is any addition they consider this perhaps a later composition. I would personally believe if something is missing in the Agamas this would have been transmission error as the Mahayana school was not as metriculers as to preserving wording as the Theravada tradition. (Since there are many later additions in the Mahayana school.) Also Mahayana texts were translations whereas Pali language was close to or same as <a href="https://en.wikipedia.org/wiki/Magahi_language" rel="nofollow noreferrer">Magahi</a> which was spoken by the Buddha himself. So here also discrepancies could have arose.</p>

<p>After the 3rd council the likelihood of changes to the Theravada Tripitaka would have been very small as Buddhism spread to to multiple location which survived in countries like Burma. If there would have been discrepancies then the version in the countries would diverge.</p>

<p>In the <a href="https://en.wikipedia.org/wiki/Fourth_Buddhist_council" rel="nofollow noreferrer">4th council</a> the Tripitaka was put in writing. This would have eliminated any room to discrepancies as this was also not confined to one country. Any changes would lead to discrepancies.</p>

<p>The Theravada councils were more heard to collect compare all the sources and redistribute the aggregate source than new compositions.</p>

<p>Also in the case of the Bahudhātuka-sutta certain parts were missing in the chinese version which prompted to ascertain than this is a later composition by the Theravada school which would resonate well with modern through with equal rights to women. I feel this seams like biases in the research there the research was bent to fit modern thought and outlook. Sometimes it might be personal perceptions backed by evidence and logic to rationalize. </p>

<p>Also taking the intersection than the union may not be the way to go in my opinion as <a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2009/12/13.4-Satipatthana-Mula-m10-sujato.pdf" rel="nofollow noreferrer">Satipatthana Mula</a> by Piya Tan this would leave out some aspects of the Sutta which does make practical sense. Also note certain areas in this analysis does have common areas from more than one independent school which indicate certain parts may have been lost than composed.</p>

<p>At least in the Theravada school miss attributing anything to the Buddha or changing the words would have been very much feared hence would have been preserved well. </p>

<p>Among the current editions the discrepancies are very rare, but there are some discrepancies. One example is <a href="http://www.themindingcentre.org/dharmafarer/wp-content/uploads/2009/12/4.11-Pacala-S-a7.58-piya.pdf" rel="nofollow noreferrer">Pacalā Sutta</a>.</p>

<p>Ultimately what is the Dhamma and what is not should be settled not at intellectual speculation but at experiential level and practice wherever possible, though some insights may not arise in every one. Any discrepancies regarding the practice should be verified by the practice.</p>
 10100: <p>I can't translate the whole of question, however I tried to answer as I can do.</p>

<hr>

<p>Layers of pali literature already being in buddha-living-period.</p>

<p>There are many pali literature in buddha's time, such as buddha's literature, sāriputta's literature, mahākaccāna's literature, upāli's literature, etc. Because every mahāsāvaka have there own students.</p>

<p>But the most influential literature are buddha's literature and sāriputta's literature.</p>

<p>4 nikaya are buddha's literature, most of the others cannon are sāriputta's literature, because he is the one who buddha said "sāriputta is the best teacher who can teach like me". So everyone always go to meet sāriputta to listen his teaching, in his literature. But if someone need buddha's literature, they will go to meet buddha or ānanda, who is the best in sutta memorizing.</p>

<p>So, abhidhamma is difference from sutta, because commentary said "abhidhamma is memorized by sāriputta". And the other buddha's sāvaka book also have literature look like sāriputta's literature because everyone in buddha-living-period often go to learn dhamma with sāriputta (see:mahāgosiṅgasālasuttaṃ).</p>

<p>7 Vinaya-pitaka, is  memorized by  Upāli and his students. He also author some path of parivāra because buddha said in tipitaka (a.n.) "Upāli is the best vinaya-memorizer" (vinayadharānaṃ yadidaṃ upāliฯ).</p>

<p>Suttanta-pitaka is memorized by Ānanda. But in 1st saṅgayanā, 500 arahanta decide to separate whole sutta to 4 nikya.Then they gave each nikya to a group of 4 etadagga and his student to especially memorize it.</p>

<p>Who are the members, of group of 4 etadagga?  Ānanda and his students (tn), Sāriputta's students (mn), Kassapa and his students (sn), Anuruddha and his students (an). (The others have learned and memorized dhamma, too, but buddha said "ānanda is the best", so everyone need him in 1st saṅgayanā).</p>

<p>Abhidhamma-pitaka, paṭisambhidāmagga, niddesa, buddhavaṃsa, cariyā-pitaka, except kathāvatthu of moggalliputta, is learned by Sāriputta, But then they are memorized by every arahanta, because everyone in buddha-living-period often go to listen Sāriputta (see:mahāgosiṅgasālasuttaṃ).</p>

<p>Origin: <a href="http://www.tipitaka.org/romn/cscd/s0101a.att0.xml" rel="nofollow noreferrer">http://www.tipitaka.org/romn/cscd/s0101a.att0.xml</a></p>
