ftfy
- January 3, 2009: Genesis block established at 18:15:05 GMT
- January 11, 2009: Bitcoin v0.1 released and announced on the cryptography mailing list
The early miner was pretty slow. It took much longer than 10 minutes per block. Only about 100 blocks (5000 btc) were solved by Jan 11.
Part of that was because Satoshi also coded a minimum difficulty into the algo, which was high enough that one cpu was never going to be able to reach that mark. Since there were no gpu miners yet, this required that a number of other players jump into the game before the 10 minute target interval could be obtained.
So Satoshi didn't give himself more advantage than he deserves as the inventor. He even gave himself much less than what could be argued as a "fair first mover advantage".
relevant old thread: https://bitcointalksearch.org/topic/satoshi-nakamoto-15-million-bitcoins-we-need-answers-37333 ("Satoshi Nakamoto - 1,5 million Bitcoins - We need answers")