The foundations for the Tower of Pisa were placed in Italy.
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Vice President Gerald Ford was sworn in as the 38th President of the United States after Richard Nixon handed in his resignation.
American sea Captain Robert Gray returned to Boston after a three-year journey commanding the ship Columbia Rediviva.
The USSR launched the Mars 7 spacecraft from the Baikonur Cosmodrome in modern-day Kazakhstan.
The Free Soil Party was formed by 465 delegates in Buffalo.
Inventor Robert Fulton tested his 66-foot long boat on River Seine in Paris, France.
