Intel introduces the Pentium MMX.
Source: https://www.intel.com/pressroom/kits/quickrefyr.htm
ID: intel-pentium-mmx
Satoshi Nakamoto announces Bitcoin 0.1 on the Cryptography mailing list.
Source: https://www.metzdowd.com/pipermail/cryptography/2009-January/014994.html
ID: bitcoin-first-software-announcement