A. Central Asian armies under the Mongols repeatedly invaded and conquered parts of the Muslim world.
During the European Middle Ages, the Asian and Muslim Empires were reaching a peak of advancement and empire building.
The Muslim Empires experienced invasions and war with the Mongols in an attempt to expand the Mongol Empire. Much of the conquest centered on gaining access to trade routes and creating power through the access to resources. The Mongols were fierce warriors who studied the places they were attacking and used modern weaponry to advance their empire. The empire at its peak of size stretched from China to eastern Europe and south to India.
Answer:
in 1862 congressed passed the pacific railway act which authorized the construction of a trans continental railroad four of the five railroad were built with assistance from the federal government through land grants
so you can make the answer above brainliest
