P2P Research List 4 messages
Satoshi introduces Bitcoin on the P2P Research mailing list — "[p2p-research] Bitcoin open source implementation of P2P currency" (February 2009)
Satoshi explains Bitcoin's fixed supply of 21,000,000 coins and how it differs from David Chaum's system, in response to Martien van Steenbergen's questions on the P2P Research mailing list.