user-1: I'm interested in the 1st Buddhist Council, i.e. why was it held, where was it held, who attended it and what were the outcome?
I'm not looking for an in-depth and detailed answer. More like an overview of the 1st council and preferably a text-reference.
Thank you for your time.

user5191: tldr; some old guy thought that because the buddha was now passed into parinirvana, the monks could go crazy and do whatever they wanted, not adhering to the rules. so a council was called consisting of 500 arahants to codify the buddhas teachings and rules for the sangha so that going forth the dharma would not degenerate. Ananda, being foremost in memory and having heard nearly all of the buddhas teachings as he was the buddhas #1 monk, was asked to join but only if he was able to attain arahantship. So Ananda stayed up all night the night prior to the council, and finally on the morning of, attained Arahantship, and was able to attend and recite all the sutas and precepts for the sanga.

The First Buddhist council was convened in the year following the Buddha's parinirvana,1 which is 543–542 BCE according to Theravada tradition, at various earlier dates according to certain Mahayana traditions, and various later dates according to certain Western estimates.[2] According to late commentarial accounts, King Ajatashatru (Sanskrit अजातशत्रु) sponsored the council. Tradition holds that on the full moon day of Shravan lunar month the Council was held in a hall erected by Ajatasattu outside the Sattaparnaguha (Pali: Sattapanniguha) or Saptaparni Cave in Rajgir, three months after the Buddha had attained parinirvana (i.e. died). Detailed accounts of the council can be found in the Khandhaka sections of the canonical Vinayas.
However other sources reveal that the Buddha's parinirvana happened 218 years before the coronation of Emperor Ashoka. Emperor Ashoka was coronated in 269 BCE. So it can also be stated that the Buddha died in 483 BCE. The time matches the reign of King Ajathashatru. Hence it can also be argued that the First Buddhist Council was held in the year 483 BCE.
According to this record the incident which prompted the Elder Mahakassapa to call this meeting was his hearing a disparaging remark about the strict rule of life for monks. The monk Subhadda, who had ordained late in life, upon hearing that the Buddha had expired, voiced his resentment at having to abide by all the rules for monks laid down by the Buddha. Many monks lamented the passing of the Buddha and were deeply grieved but Subhadda spoke up to show happiness and relief that Buddha was gone.
And Subhadda, the late-received one, said to the Bhikkhus: "Enough, Sirs! Weep not, neither lament! We are well rid of the great Samana. We used to be annoyed by being told, 'This beseems you, this beseems you not.' But now we shall be able to do whatever we like; and what we do not like, that we shall not have to do."[3]
Mahakassapa was alarmed by his remark and feared that the Dhamma and the Vinaya might be corrupted and not survive intact if other monks were to behave like Subhadda and interpret the Dhamma and the Vinaya rules as they pleased. To avoid this he decided that the Dhamma must be preserved and protected. To this end after gaining the Sangha's approval he called to council five hundred Arahants.[3] Ananda was to be included in this provided he attained Arahanthood by the time the council convened.
With the Elder Mahakassapa presiding, the five hundred Arahant monks met in council during the rainy season. The first thing Mahakassapa did was to question the foremost expert on the Vinaya of the day, Venerable Upali on particulars of the monastic rule. This monk was well qualified for the task as the Buddha had taught him the whole of the Vinaya himself. The Elder Mahakassapa asked him specifically about the ruling on the first offense parajika, with regard to the subject, the occasion, the individual introduced, the proclamation, the repetition of the proclamation, the offense and the case of non-offense. Upali gave knowledgeable and adequate answers and his remarks met with the unanimous approval of the presiding Sangha. Thus, the Vinaya was formally approved.
The Elder Mahakassapa then turned his attention to Ananda in virtue of his reputable expertise in all matters connected with the Dhamma. Happily, the night before the Council was to meet, Ananda had attained Arahantship and joined the Council.1[4] The Elder Mahakassapa, therefore, was able to question him at length with complete confidence about the Dhamma with specific reference to the Buddha's sermons. This interrogation on the Dhamma sought to verify the place where all the discourses were first preached and the person to whom they had been addressed.
Ananda aided by his word-perfect memory was able to answer accurately and so the Discourses met with the unanimous approval of the Sangha. The First Council also gave its official seal of approval for the closure of the chapter on the minor and lesser rules, and approval for their observance. It took the monks seven months to recite the whole of the Vinaya and the Dhamma and those monks sufficiently endowed with good memories retained all that had been recited. This historic first council came to be known as the Pancasatika because five hundred fully enlightened Arahants had taken part in it.

https://en.wikipedia.org/wiki/First_Buddhist_council
buddhanet.net/e-learning/buddhism/lifebuddha/2_32lbud.htm

user18: The account of the first and second councils is found in the Cūḷavagga of the Vinaya Pitaka (Cv XI and XII). The first council (Cv XI) was held in Rajagaha, at what is known as the monastery of the seven caves, on the mountains above the city. Five hundred bhikkhus were in attendance.
The idea for a council began with Mahakassapa relating to his fellow monks the story found in the Mahaparinibbana Sutta (DN 16) wherein Mahakassapa finds out about the Buddha's passing. He relates how he encouraged the monks to remember that everything we hold dear must pass, so they shouldn't mourn, and how an old monk named Subhadda said they shouldn't mourn because they were now free to ignore the Buddha's words and do what they wanted. He then requests that they rehearse the dhamma and vinaya together, "before what is not the dhamma shines and the dhamma is rejected; before what is not the vinaya shines and the vinaya is rejected; before those who speak what is not the dhamma become strong and those who speak the dhamma become weak; before those who speak what is not the vinaya become strong and those who speak the vinaya become weak."
At this, his fellow monks requested he select monks for the council, which he did - 499 of them, all arahants. The monks suggested he select ananda as the 500th, since he was a sekha, unable to give rise to such defilement as would lead to the states of loss and of course because he had heard much of the dhamma and vinaya in the Buddha's presence.
The elders asked themselves where they should meet, and agreed upon Rajagaha as being a great place to find the support they would need in terms of alms and dwellings. They proposed to stay there for the rains and hold the council there, and to agree that no other monk should stay in Rajagaha for the rains., Mahakassapa proposed it as a sanghakamma - any against should speak, those for it should stay silent - and it passed unanimously. 
They spent the first month making repairs to their dwellings, then began the council.
The events of the council itself are, in brief, as follows:

Ananda, an arahant by this time, arrived just as the council was beginning.
Mahakassapa questioned Upali on the vinaya, beginning with "The first parajika, where was it laid down?". He asked about the story behind, the person behind, the issue behind, minor issues related to, what was an offence, and what was not, in relation to each of the precepts from each of the two codes of discipline and Upali responded.
Mahakassapa questioned Ananda on the dhamma, asking about the story behind and the person behind every sutta in the five nikayas, starting with the Brahmajala sutta and Ananda responded.
Ananda related the Buddha's permission to discard the minor and lesser precepts; they asked him if he had gotten specification on what were the minor and lesser rules and he admitted he had not. They couldn't agree, so in the end, Mahakassapa made a formal proposal that they keep the rules as they were, since it was known to lay people what was proper for them and what was not. If they were to change the rules, it would be spread about that they were going against the Buddha while his funeral pyre still smouldered. There was unanimous consent.
The elders questioned Ananda on several points where they felt he was deserving of rebuke, including that he didn't ask about the minor and lesser rules. He replied in defence, but accepted his actions as wrong doings out of faith in the elders.
The venerable Purana arrived and was told they had recited the dhamma and vinaya and that he should recite it with them. He replied by saying that while the dhamma and vinaya was well recited by them, he preferred to hold to the dhamma and vinaya as he had heard it from the Buddha himself.
Ananda related the Buddha's injunction that Channa was to receive the brahmadaṇḍa (God's or highest punishment) - that no one should speak or teach or advise him. They told him to tell Channa himself, and he asked what to do if Channa was harsh and abusive in response. They told him to bring many monks with him. The council seems to have ended there, as the text then follows Ananda to a meeting with King Udena and eventually Channa. Either that, or the council ender before this and Ananda related the injunction regarding Channa to the elders on a later date.


-1: <p>I'm interested in the <em>1st Buddhist Council</em>, i.e. why was it held, where was it held, who attended it and what were the outcome?</p>

<p>I'm not looking for an in-depth and detailed answer. More like an overview of the 1st council and preferably a text-reference.</p>

<p>Thank you for your time.</p>
 5191: <p>tldr; some old guy thought that because the buddha was now passed into parinirvana, the monks could go crazy and do whatever they wanted, not adhering to the rules. so a council was called consisting of 500 arahants to codify the buddhas teachings and rules for the sangha so that going forth the dharma would not degenerate. Ananda, being foremost in memory and having heard nearly all of the buddhas teachings as he was the buddhas #1 monk, was asked to join but only if he was able to attain arahantship. So Ananda stayed up all night the night prior to the council, and finally on the morning of, attained Arahantship, and was able to attend and recite all the sutas and precepts for the sanga.</p>

<blockquote>
  <p>The First Buddhist council was convened in the year following the Buddha's parinirvana,<a href="http://buddhanet.net/e-learning/buddhism/lifebuddha/2_32lbud.htm" rel="nofollow">1</a> which is 543–542 BCE according to Theravada tradition, at various earlier dates according to certain Mahayana traditions, and various later dates according to certain Western estimates.[2] According to late commentarial accounts, King Ajatashatru (Sanskrit अजातशत्रु) sponsored the council. Tradition holds that on the full moon day of Shravan lunar month the Council was held in a hall erected by Ajatasattu outside the Sattaparnaguha (Pali: Sattapanniguha) or Saptaparni Cave in Rajgir, three months after the Buddha had attained parinirvana (i.e. died). Detailed accounts of the council can be found in the Khandhaka sections of the canonical Vinayas.</p>
  
  <p>However other sources reveal that the Buddha's parinirvana happened 218 years before the coronation of Emperor Ashoka. Emperor Ashoka was coronated in 269 BCE. So it can also be stated that the Buddha died in 483 BCE. The time matches the reign of King Ajathashatru. Hence it can also be argued that the First Buddhist Council was held in the year 483 BCE.</p>
  
  <p>According to this record the incident which prompted the Elder Mahakassapa to call this meeting was his hearing a disparaging remark about the strict rule of life for monks. The monk Subhadda, who had ordained late in life, upon hearing that the Buddha had expired, voiced his resentment at having to abide by all the rules for monks laid down by the Buddha. Many monks lamented the passing of the Buddha and were deeply grieved but Subhadda spoke up to show happiness and relief that Buddha was gone.</p>
  
  <p>And Subhadda, the late-received one, said to the Bhikkhus: "Enough, Sirs! Weep not, neither lament! We are well rid of the great Samana. We used to be annoyed by being told, 'This beseems you, this beseems you not.' But now we shall be able to do whatever we like; and what we do not like, that we shall not have to do."[3]</p>
  
  <p>Mahakassapa was alarmed by his remark and feared that the Dhamma and the Vinaya might be corrupted and not survive intact if other monks were to behave like Subhadda and interpret the Dhamma and the Vinaya rules as they pleased. To avoid this he decided that the Dhamma must be preserved and protected. To this end after gaining the Sangha's approval he called to council five hundred Arahants.[3] Ananda was to be included in this provided he attained Arahanthood by the time the council convened.</p>
  
  <p>With the Elder Mahakassapa presiding, the five hundred Arahant monks met in council during the rainy season. The first thing Mahakassapa did was to question the foremost expert on the Vinaya of the day, Venerable Upali on particulars of the monastic rule. This monk was well qualified for the task as the Buddha had taught him the whole of the Vinaya himself. The Elder Mahakassapa asked him specifically about the ruling on the first offense parajika, with regard to the subject, the occasion, the individual introduced, the proclamation, the repetition of the proclamation, the offense and the case of non-offense. Upali gave knowledgeable and adequate answers and his remarks met with the unanimous approval of the presiding Sangha. Thus, the Vinaya was formally approved.</p>
  
  <p>The Elder Mahakassapa then turned his attention to Ananda in virtue of his reputable expertise in all matters connected with the Dhamma. Happily, the night before the Council was to meet, Ananda had attained Arahantship and joined the Council.<a href="http://buddhanet.net/e-learning/buddhism/lifebuddha/2_32lbud.htm" rel="nofollow">1</a>[4] The Elder Mahakassapa, therefore, was able to question him at length with complete confidence about the Dhamma with specific reference to the Buddha's sermons. This interrogation on the Dhamma sought to verify the place where all the discourses were first preached and the person to whom they had been addressed.</p>
  
  <p>Ananda aided by his word-perfect memory was able to answer accurately and so the Discourses met with the unanimous approval of the Sangha. The First Council also gave its official seal of approval for the closure of the chapter on the minor and lesser rules, and approval for their observance. It took the monks seven months to recite the whole of the Vinaya and the Dhamma and those monks sufficiently endowed with good memories retained all that had been recited. This historic first council came to be known as the Pancasatika because five hundred fully enlightened Arahants had taken part in it.</p>
</blockquote>

<p><a href="https://en.wikipedia.org/wiki/First_Buddhist_council" rel="nofollow">https://en.wikipedia.org/wiki/First_Buddhist_council</a></p>

<p><a href="http://buddhanet.net/e-learning/buddhism/lifebuddha/2_32lbud.htm" rel="nofollow">buddhanet.net/e-learning/buddhism/lifebuddha/2_32lbud.htm</a></p>
 18: <p>The account of the first and second councils is found in the Cūḷavagga of the Vinaya Pitaka (Cv XI and XII). The first council (Cv XI) was held in Rajagaha, at what is known as the monastery of the seven caves, on the mountains above the city. Five hundred bhikkhus were in attendance.</p>

<p>The idea for a council began with Mahakassapa relating to his fellow monks the story found in the Mahaparinibbana Sutta (DN 16) wherein Mahakassapa finds out about the Buddha's passing. He relates how he encouraged the monks to remember that everything we hold dear must pass, so they shouldn't mourn, and how an old monk named Subhadda said they shouldn't mourn because they were now free to ignore the Buddha's words and do what they wanted. He then requests that they rehearse the dhamma and vinaya together, "before what is not the dhamma shines and the dhamma is rejected; before what is not the vinaya shines and the vinaya is rejected; before those who speak what is not the dhamma become strong and those who speak the dhamma become weak; before those who speak what is not the vinaya become strong and those who speak the vinaya become weak."</p>

<p>At this, his fellow monks requested he select monks for the council, which he did - 499 of them, all arahants. The monks suggested he select ananda as the 500th, since he was a <em>sekha</em>, unable to give rise to such defilement as would lead to the states of loss and of course because he had heard much of the dhamma and vinaya in the Buddha's presence.</p>

<p>The elders asked themselves where they should meet, and agreed upon Rajagaha as being a great place to find the support they would need in terms of alms and dwellings. They proposed to stay there for the rains and hold the council there, and to agree that no other monk should stay in Rajagaha for the rains., Mahakassapa proposed it as a sanghakamma - any against should speak, those for it should stay silent - and it passed unanimously. </p>

<p>They spent the first month making repairs to their dwellings, then began the council.</p>

<p>The events of the council itself are, in brief, as follows:</p>

<ol>
<li>Ananda, an arahant by this time, arrived just as the council was beginning.</li>
<li>Mahakassapa questioned Upali on the vinaya, beginning with "The first parajika, where was it laid down?". He asked about the story behind, the person behind, the issue behind, minor issues related to, what was an offence, and what was not, in relation to each of the precepts from each of the two codes of discipline and Upali responded.</li>
<li>Mahakassapa questioned Ananda on the dhamma, asking about the story behind and the person behind every sutta in the five nikayas, starting with the Brahmajala sutta and Ananda responded.</li>
<li>Ananda related the Buddha's permission to discard the minor and lesser precepts; they asked him if he had gotten specification on what were the minor and lesser rules and he admitted he had not. They couldn't agree, so in the end, Mahakassapa made a formal proposal that they keep the rules as they were, since it was known to lay people what was proper for them and what was not. If they were to change the rules, it would be spread about that they were going against the Buddha while his funeral pyre still smouldered. There was unanimous consent.</li>
<li>The elders questioned Ananda on several points where they felt he was deserving of rebuke, including that he didn't ask about the minor and lesser rules. He replied in defence, but accepted his actions as wrong doings out of faith in the elders.</li>
<li>The venerable Purana arrived and was told they had recited the dhamma and vinaya and that he should recite it with them. He replied by saying that while the dhamma and vinaya was well recited by them, he preferred to hold to the dhamma and vinaya as he had heard it from the Buddha himself.</li>
<li>Ananda related the Buddha's injunction that Channa was to receive the <em>brahmadaṇḍa</em> (God's or highest punishment) - that no one should speak or teach or advise him. They told him to tell Channa himself, and he asked what to do if Channa was harsh and abusive in response. They told him to bring many monks with him. The council seems to have ended there, as the text then follows Ananda to a meeting with King Udena and eventually Channa. Either that, or the council ender before this and Ananda related the injunction regarding Channa to the elders on a later date.</li>
</ol>
