This is what i would put but i think he states pretty well On October 4, 1957, the Soviet Union launched the earth's first artificial satellite, Sputnik I. ... As a result, the launch of Sputnik served to intensify the arms race and raise Cold War tensions. During the 1950s, both the United States and the Soviet Union were working to develop new technology
He chose Lewis and Clark to explore the new land. They took notes of the plants, flowers, and landscapes they found and encountered. Along the way they also got help from Sacagawea, a Native American woman. Hope this helps!
