What was the main usefulness of the lateen sail? it permitted easy sailing up river. it limited the lateral motion of the ship in high winds. it allowed maximum speed sailing with the wind. it maximized use of monsoon trade winds. the song dynasty was unable to completely secure its reign because: the song were unable to control the trade in silk and porcelain. the song were unable to contain the annamese military. the song were unable to control the scholar-gentry. the song were unable to contain the northern nomadic tribes. why were the spanish conquest of toledo and the expulsion of muslim forces from sicily said to be more important than the crusades? these campaigns marked the first time european knights united behind a single general. these campaigns marked turning points in relations between christian and muslim power in the mediterranean. these campaigns marked the first cooperation between christians and jews to defeat the common muslim enemy. these campaigns marked new cooperation between western europe and the byzantine empire. which of the following correctly characterizes the cahokians? the cahokians successfully defeated tribes from the great plains who attacked the settlement in a territorial dispute. the cahokians recruited mesoamericans to serve as workers in the fields. the cahokians built, without draft animals or the use of the wheel, large earthen mounds for use in religious ceremonies. the cahokians planted fields with potatoes as their staple crop. turkic rulers in india hastened the absorption of buddhism into hinduism by which of the following actions? excluding buddhists from the protection of the jizya refusing to permit begging by itinerant buddhist monks on public roads depriving buddhism of local spiritual leaders by destroying large monasteries forcing conversion of all who were not protected as “people of the book” which of the following accurately reflects slavery in islamic society between 1000 and 1300 ce? the work required of slaves was so physically demanding that only male slaves were brought to the arabian peninsula. slaves served as seafarers, soldiers, domestics, and plantation workers. most slaves came from china and southeast asia. slavery was eventually banned after islamic scholars amended sharia law. the magnetic needle compass was so important because it allowed navigators to: control speed of their ships. know the direction of their home port. calculate longitude. sail under cloudy skies on the open seas.