Question

when did mahajanpadas came into existence​

Answer 1

Answer:

The Mahājanapadas (Sanskrit: महाजनपद, lit. 'great realm', from maha, "great", and janapada "foothold of a people") were sixteen kingdoms or oligarchic republics that existed in Northern ancient India from the sixth to fourth centuries BCE during the second urbanisation period.

Answer 2

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The Mahājanapadas were sixteen kingdoms or oligarchic republics that existed in Northern ancient India from the sixth to fourth centuries BCE during the second urbanisation period.