The competition between the United States and the Soviet Union for superiority in extraterrestrial exploration was called Space Race.
America had reason to compete against the Soviet Union in Space Race: Sputnik beat the United States to space in 1957, damaging its national pride and igniting fears of Soviet technology. The Soviet Union wanted space just as badly as the United States did. The Soviet Union and the United States differed in how they propagandized the Space Race, but they shared the common bond of actually having space programs.
It was very, very important for women to start working during the war because so many people were deployed that the demand for jobs in factories and other places was far higher than there were people available. Also, there were not enough women in the workforce at that time to fill those open positions. They filled many jobs in making supplies for war (that would normally be filled by men). Initially it was difficult to recruit the women (who were originally fitting the bill of "housewives"), and this is where those "We Can Do It" signs with "Rosie the Riveter" came about.
When Fort Defiance was built in 1851 near Canyon de Chelly, Navajo territory, the Indians were forbidden from using the valuable grazing land. As a result, the Fort Defiance was constantly at odds with the Navajos, and two major attacks were launched against the fort in 1856 and 1860.
On April 29, 1860, about 1,000 Navajo warriors attacked the US Army garrison at Fort Defiance in New Mexico Territory, which is now part of Arizona. The Navajo launched a surprise attack but were defeated by 150 American defenders from the 3rd Infantry led by Captain Oliver L. Shepherd. Important event of history.
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Pearl Harbor was attacked by Japan on December 7, 1941. <span />
D. They use different sources of evidence