How and why did various land-based empires develop and expand from 1450-1750?

Imperial expansion in Europe and Asia resulted from the increased use of gunpowder, cannons, and armed trade to establish large empires. Most of the groups that were conquered were weak or disorganized. These land-based empires included the Manchu in Central East Asia, the Mughal in South and Central Asia, the Ottoman in Southern Europe, the Middle East, and North Africa. The rulers centralized their power over politics, religion, and the military. They also controlled trade, enriching the rulers, who created cultural monuments and stronger militaries.

Explanation:

the answer is catholics

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.