How did the Crusades contribute to the fall of the Byzantine empire?

What led to violence in kansas in 1854? a.) northerners and southerners disagreed over the results of the slavery vote. b.) people in kansas wrote the fugitive slave law. c.) people voted for kansas to be a free state. d.) nebraska was split into kansas and nebraska

Why did river valleys most farming impact the lives of neolithic peoples?

All of the following cities are located in china except