23 years ago
3324 years ago.
The solar system originated about 4.6 billion years ago.
according to www.bradshawfoundation.com/journey modern man originated about 160,000 years ago in the east of Africa. hope his helps. ;)
200 years ago
According to tradition, it was 3800 years ago.
Marco polo doesn't exist any more he died a Google years ago
in Egypt over 200 years ago
they came from Asia 10000 years ago!
It was mentioned by Plato 2500 years ago.
The earliest unicellular animals appeared about 800 million years ago.
Merchant Seamanship early years ago.