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"The National Aeronautics and Space Administration (NASA) emerged in some measure because of the pressures of national defense during the cold war with the Soviet Union, a broad contest over the ideologies and allegiances of the nonaligned nations of the world in which space exploration emerged as a major area of contest. From the latter 1940s, the Department of Defense pursued research and rocketry and upper atmospheric sciences as a means of assuring American leadership in technology. A major step forward came when President Dwight D. Eisenhower approved a plan to orbit a scientific satellite as part of the International Geophysical Year (IGY) for the period, 1 July 1957 to 31 December 1958, a cooperative effort to gather scientific data about the Earth. The Soviet Union quickly followed suit, announcing plans to orbit its own satellite."

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"Search the Web to learn more about the stories behind the stamps issued by the U.S. Postal Service commemorating the people, places, events, and trends of the 1960s. Explore Web sites related to Neil Armstrong's first steps on the moon and Martin Luther King's "I Have a Dream" speech as well as the introduction of the Ford Mustang and Roger Maris's 61st home run! Included: An Internet scavenger hunt for students!"

"Search the Web to learn more about the stories behind the stamps issued by the U.S. Postal Service commemorating the people, places, events, and trends of the 1950s. Explore Web sites related to the polio vaccine, rock and roll, Brown v. the Board of Education, and I Love Lucy! Included: An Internet scavenger hunt for students!"

speeches given by women

Search the Web to learn the stories behind the stamps issued by the United States Postal Service commemorating the people, places, events, and trends of the 1930s. Explore Web sites related to the Empire State Building, Superman, the Great Depression, Franklin Delano Roosevelt, the Monopoly board game, and more!