Two superpowers wanting to see who was better. Called the cold war because not a single shot was fired
Voter registration. To vote in Arizona, one must be a citizen of the United States and a resident of an Arizona county. A voter must be 18 years or older on or before Election Day. To be eligible to vote in an election one must register at least 29 days prior to the election.
It prevented government from interfering in religion
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada.