What played a great role in the kansan nebraska act

Stephen Douglas played a great role in the Kansas Nebraska Act. 

The Inca are known for domesticating animals for transportation and for praying to the sun god Inti. The Inca had an elaborate road transportation network used for trading and communication. The Inca domesticated the alpaca and the llama as beasts of burden.

The Mayan people cultivated maize on a large scale as this was one of their favourite foods. In order to feed a rapidly growing population, there needed to be many agricultural workers.