user43577: Now I can see the Bitcoin Core source code in Github but I wonder where the original source code of Bitcoin were stored back in 2009? Was it managed under SVN? How did contributors or programmers work together back then?
Thanks,
Pil

user43577: Thanks to Chak's answer, I was able to find the (unofficial) github repo hosting https://github.com/benjyz/bitcoinArchive which contains the original bitcoin source code. For those who are interested in review the source code in git, this will help.
You may find Bitcoin v0.1 released announcement  by Satoshi Nakamoto and Bitcoin v0.1 source code  hosted in github interesting.

user65907: 2008
We don't know if Satoshi Nakamoto is an individual or a group, but Satoshi Nakamoto asked for professional crypto geeks to review his project in 2008.
The original source files were therefore distributed privately through email.
2009
Unsure if Satoshi Nakamoto used any kind of source control before the source codes were available to the public. You probably have to ask the developers that were involved.
First available on Sourceforge.
Initial commits on GitHub were converted from svn on Sourceforge.

43577: <p>Now I can see the Bitcoin Core source code in Github but I wonder where the original source code of Bitcoin were stored back in 2009? Was it managed under SVN? How did contributors or programmers work together back then?</p>

<p>Thanks,
Pil</p>
 43577: <p>Thanks to Chak's answer, I was able to find the (unofficial) github repo hosting <a href="https://github.com/benjyz/bitcoinArchive" rel="nofollow noreferrer">https://github.com/benjyz/bitcoinArchive</a> which contains the original bitcoin source code. For those who are interested in review the source code in git, this will help.</p>

<p>You may find <a href="http://www.metzdowd.com/pipermail/cryptography/2009-January/014994.html" rel="nofollow noreferrer">Bitcoin v0.1 released</a> announcement  by Satoshi Nakamoto and <a href="https://github.com/benjyz/bitcoinArchive/tree/master/bitcoin0.1" rel="nofollow noreferrer">Bitcoin v0.1 source code</a>  hosted in github interesting.</p>
 65907: <p><strong>2008</strong><br>
We don't know if Satoshi Nakamoto is an individual or a group, but <a href="https://bitcointalk.org/index.php?topic=382374.0" rel="noreferrer">Satoshi Nakamoto asked for professional crypto geeks to review his project in 2008</a>.<br>
The <a href="https://github.com/benjyz/bitcoinArchive" rel="noreferrer">original source files were therefore distributed privately through email</a>.</p>

<p><strong>2009</strong><br>
Unsure if Satoshi Nakamoto used any kind of source control before the source codes were available to the public. You probably have to ask the developers that were involved.<br>
<a href="https://sourceforge.net/projects/bitcoin/" rel="noreferrer">First available on Sourceforge</a>.<br>
<a href="https://github.com/bitcoin/bitcoin/commits/master?after=d48ab83f00538a5135b2c448809260a9d46ca31c%2015635" rel="noreferrer">Initial commits on GitHub</a> were converted from svn on Sourceforge.</p>
