Answer:Islam
The Islamic empire had its roots in the career of the Prophet Muhammad (d. 632 C.E./II A.H.) and initially came into existence as a consequence of the extensive conquests on which Muhammad's followers embarked immediately after his death. During the empire's first two centuries, the ad hoc and sometimes tribally based governing structures of the conquest period were gradually replaced by more systematically organized bureaucratic institutions; in some cases, the Islamic empire drew on structures and traditions of the Byzantine or Sassanian empires as models for these institutions.
Rise and Expansion of Islam, 610-945
In the early 7th century, Arab Muslim armies spread out from the Arabian Peninsula into the surrounding lands and, in a wave of expansion that lasted about a hundred years, conquered almost the entire Middle East and North Africa.
Patoral People on the Global Stage: the Mongols, 1200-1500
Mongol Period
THE MONGOLS in central Asia formed a new empire under Temujin (1167 to 1227), who rapidly expanded the empire by use of strategy and his military machine, employing discipline, extraordinary mobility (especially on horseback), espionage, terror, and superior siege material.
Mongols
The Mongols, who created the largest connected land empire in world history, originated as a group in eastern Mongolia that in the early thirteenth century came under the leadership of Genghis Khan. When they first appeared on the historical stage, they were pastoral nomads, migrating several times a year to find grass and water for their animals.
Explanation:
Well I think 1. cause I know Christopher Columbus went on a expedition to go to Asia but found the anericas
Marginal benefit is more than marginal cost that is why some people more than others enjoy buying a lot of shoes.
Explanation:
When marginal benefit is more than marginal cost the resources were used more efficiently, when there is increase in the quantity. Marginal cost is the cost incurred by producing one extra unit of the commodity. Marginal benefit is referred to as the extra benefit received by consuming one extra unit of the benefit.
in case of shoes the consumer will buy more shoes because he or she is getting extra benefit by consuming one extra unit but when the marginal cost becomes more than the marginal benefit he or she will not like the benefit because the consumer has to pay more for using the benefit.
