400bc
around 400BC by the Romans
5th century bc
before 400BC by aryabhatt
1000 years
sometime in the 400BC in greece
400BC
The earliest known references to cameras are in about 400BC in China.
Im not sure when it started but i now that it ended in 400BC !! I will look for the answer!! Im not sure when it started but i now that it ended in 400BC !! I will look for the answer!!
Remembering that there was no year zero, it was 2409 years.
it started in 400BC and began to collapse in 900AD
it was started in 400BC sources: my social studies teacher