This will outline some major years This is a brief chart of critical years in the major regions I'm looking at.

Silk Road	Monsoon	Silver
Antiquity	Antiquity	1492-Columbus reaches the Americas
1279-Mongol Empire at its peak	1488-De Gama enters the Indian ocean	1571-Legazpi reaches the Philippines
1453-Fall of Constantiople	1869-Suez Canal opens	1898-USA conquers the spanish caribbean and the Philippines.