there were 16 mahajanpadas by 600BC
400
Yes.
Damascus
the rajas of mahajanpadas built forts to be safe from attacks and to show how rich they are
600bc
600bc The question asked 'where'. The famous hanging gardens were in Babylon.
600BC
Zoroaster. who lived about 600bc
Around 600BC.
600bc-200bc. The interesting stuff happened around 500bc
I think the 1st hindu temple was built between 1500BC-600BC.
In between 600BC and 247BC is when 6 of the 7 wonder of the Ancient world were built.