U.S. History

What is the name of the U.S.'s first successful spy satellite?

More Questions from U.S. History
What historical event inspired the motto "In God We Trust" on U.S. coins?
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Where did Teddy Roosevelt first publicly say "speak softly and carry a big stick"?
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Who was the architect that designed one of Washington's most famous structures "The Lincoln Memorial"?
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What U.S. retirement program began in the 1930's?
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Who was the Jamestown settlement named after?
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Which of these ceremonial chiefs was also known for his knowledge of healing techniques?
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What U.S. President broke the infamous 20-year-death-in-office curse?
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Which of these four past U.S. Presidents did not live to be at least ninety years old?
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