This document outlines the major land and maritime empires between 1450-1750, including the Russian, Qing/Manchu, Ottoman, and Mughal land empires and the Spanish, Portuguese, British, French, and Dutch maritime empires. It discusses how these empires utilized bureaucrats and professional militaries to maintain centralized control over populations and resources while limiting other nobles' power. It also notes how rulers controlled religious and ethnic groups to utilize their economic contributions while restricting challenges to government authority, and that a result of the European maritime empires was the Columbian Exchange of plants, animals, and diseases between Afro-Eurasia and the Americas.