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- INTRO
- 2500- 1700 BC
- 1500 BC -600BC
- 600 BC-300 BC
- 400 BC TO 200 BC
- 230 BC to 230 CE
- 300 BC To 300 CE
- Early 300 CE TO 600 CE
- 275 CE- - 897CE
- (543- 757 AD) and then (975-1189 AD)
- 593 CE - 982 CE
- 850 CE to 1279 CE
- 952 CE to 1343 CE
- 180 CE to 624 CE
- 700CE to 1200CE
- 1206- 1526 CE
- 1540 CE to 1555 CE
- 1526 CE to 1707 CE
- 1336- 1646 AD
- 1347 CE to 1527 CE
- 1773-1858
- 1858- 1947
- 1947 - Present
From 1947-1956, 28 Departments, a Cabinet Secretariat, 8 Central Administrative Offices and 20 Ministries were created
