3500 bc
3500 BC came first. The years are counted down to 1 BC, so 3500 BC is earlier in history than 2000 BC.
people were reported to do surgery on the brain since 200bc
it has been use since 200bc
200bc by a young man named fredro alexendro the 3
The Babylonians, who were credited with writing about both the element and the planet about 3500BC but this does not mean they were the first to observe.
No, bc means before Christ, so 5000bc comes before 200bc.
Around 3500BC!
200bc
200BC
200bc
The first game invented is typically considered to be Pong, and it was released in 1972 by Atari.
Primes were known to the early Greek Mathematicians - the Pythagoreans about 400BC and Euclid about 300BC. Eratosthenes came up with 'the sieve of Eratosthenes' for working out primes about 200BC. There is no record that the Babylonians knew about primes.