Empires of West Africa, Mesoamerica, and China

https://s-media-cache-ak0.pinimg.com/originals/e5/ca/e0/e5cae0ee459bbd05a4c50b546a4454a6.jpg

West Africa

1070 BC - 350 AD
100 AD - 940 AD
800 AD - 1076 AD
1235 AD - 1400 AD
1464 - 1591

Mesoamerica

1200 BC - 400 BC
300 - 900
1428 - 1521
1438 ce - 1533 ce

China

221 BCE - 202 BCE
206 BCE - 220 CE
581 - 618
618 CE - 907 CE
960 CE - 1279 CE
1279 - 1368
1368 CE - 1644 CE