Samuel Morse invented the telegraph. The telegraph allowed for the United States to continue expansion westward but still be able to communicate with more areas of the country. This communication system typically followed along rail routes and if a rail line was close by this communication system could be used to issue alerts, news, and messages across the country. This technology allowed for a capital on one side of the country to keep tabs on the other coast.
Mills vs. Board of Education was a lawsuit filed against the District of Columbia in the early 70s. The lawsuit was on the behalf of 7 disabled children who were denied access to a public school education because it was thought that their needs were too great for them to be able to be educated in a public school setting (it was also said by the Board that it would be too expensive to educate them).
This should be under a Science not history, but the answer is
D. visual perception
Answer:
The US supplied the allies with raw material, supplies, and money.