Even as West Europeans were building their empires in the Americas and the Russians were expanding across Siberia, other imperial projects were likewise under way. The Chinese pushed deep into central Eurasia; Turko-Mongol invaders from Central Asia created the Mughal Empire, bringing much of Hindu South Asia within a single Muslim-ruled political system; and the Ottoman Empire brought Muslim rule to a largely Christian population in southeastern Europe and Turkish rule to largely Arab populations in North Africa and the Middle East. None of these empires had the global reach or worldwide impact of Europe’s American colonies; they were regional rather than global in scope. Nor did they have the same devastating and transforming impact on their conquered peoples, for those peoples were not being exposed to new diseases. Nothing remotely approaching the catastrophic population collapse of Native American peoples occurred in these Asian empires. Moreover, the process of building these empires did not transform the imperial homeland as fundamentally as did the wealth of the Americas and to a lesser extent Siberia for European imperial powers. Nonetheless, these expanding Asian empires reflected the energies and vitality of their respective civilizations in the early modern era, and they gave rise to profoundly important cross-cultural encounters, with legacies that echoed for many centuries.