USA HISTORY

Detailed explanation-1: -Connecting the two American coasts made the economic export of Western resources to Eastern markets easier than ever before. The railroad also facilitated westward expansion, escalating conflicts between Native American tribes and settlers who now had easier access to new territories.

Detailed explanation-2: -The Transcontinental Railroad made it so that it was easier to for mail and goods to travel faster and cheaper. It took land away from Native Americans and many were killed in the early stages.

Detailed explanation-3: -On May 10, 1869, at Promontory Summit, Utah, a golden spike was hammered into the final tie. The transcontinental railroad was built in six years almost entirely by hand.

Detailed explanation-4: -European immigrants flooded onto the Great Plains, seeking political or religious freedom, or simply to escape poverty in their own country. Younger sons from the eastern seaboard-where the population was growing and land was becoming more expensive-went because it was a chance to own their own land.