Help pls no one wants to help me

It began with the Louisiana Purchase. People migrated to the west for economic reasons. The Westward expansion is one of the main reason people migrated to the West. People traveled about 7 months to pry for silver in Nevada. To add on, people had an opportunity  to own land cheaply under the Homestead Act, and jobs were available in the west.

Hope this helps a little :) Make sure to use websites, and research!

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.