Hillary Clinton announced her candidacy for US President.
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The Zimbabwean dollar was suspended indefinitely.
Cardinal Bellarmine condemned Galileo for stating that the earth revolved around the sun.
Jonas Salk's Polio vaccine tested by Jonas Salk was given final approval by the US Food and Drug Administration.
The first Space Shuttle mission was launched.
The Battle of Fort Sumter in South Carolina between the United States and the Confederate States started the American Civil War.
