Jean-Paul Sartre 1905
- 1788 - The U.S. Constitution went into effect when New Hampshire became the ninth state to ratify it.
- 1834 - Cyrus McCormick patented the first practical mechanical reaper for farming. His invention allowed farmers to more than double their crop size.
- 1859 - Andrew Lanergan received the first rocket patent.
- 1893 - The Ferris Wheel was introduced at the World's Columbian Exposition in Chicago, IL.
- 1974 - The U.S. Supreme Court decided that pregnant teachers could no longer be forced to take long leaves of absence.
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