Peoples- Spanish brought slaves to America, because they had killed most natives & needed cheap labor Crops- Natives grew crops Europeans had never seen before. Natives learned new ways to use crops because of Europeans. Diseases- Europeans had diseases that they brought with them to America, which killed the native population (almost) off.
The original purpose of the Selective Service Act of 1917 was to draft Americans into the armed forces. This was used as a means to increase the size of the American army during World War I.
