One of the first places where Satoshi Nakamoto mentioned bitcoin was at the P2PFoundation.ning.com. When you register there, you have to give your birthdate. Satoshi gave April 5th 1975.

April 5th was one of the most significant dates in history. On that day in 1933, President Franklin D. Roosevelt signed Executive Order 6102, which made it illegal for American citizens to own gold.

So what happened in 1975?

1975 was the year it became legal for American citizens to own gold again.

Such is Satoshi’s meticulousness and his knowledge of monetary history, I’m sure this is no coincidence.

By combining the two dates – April 5th and 1975 – he gives himself a credible age and manages a dig at what some regard as one of the US government’s most unconstitutional actions of the past century.