I was thinking about how long it took satoshi to create bitcoin either if he was solo or a team as it was created to run without the need of anyone's help.
The first bitcoin block was created 3rd January 2009 and it is known as Genesis Block see the source here
https://en.bitcoin.it/wiki/Genesis_block , and about the time i think it took many days.
I mean to create the whole entire existance of bitcoin the source/technology.