Answer:
Harappan civilization, Aryan migration,Persian Empire,Mauryan Empire,Gupta Empire
Explanation:
Harappan civilization 2500 - 1700 BC
, Aryan migration 1800 - 1500 BC
,Persian Empire 559 - 331 BC
,Mauryan Empire 322 - 181 BC
,Gupta Empire 320 - 550 BC
