World Blood Donor Day
1775 - The first U.S. Military service, the Continental Army consisting of six companies of riflemen, was established by the Second Continental Congress. The next day, George Washington was appointed by a unanimous vote to command the army.
1777 - John Adams introduced a resolution before Congress mandating a United States flag, stating, "...that the flag of the thirteen United States shall be thirteen stripes, alternate red and white; that the union be thirteen stars, white on a blue field, representing a new constellation." This anniversary is celebrated each year in the U.S. as Flag Day.
1922 - Warren G. Harding became the first U.S. President to broadcast a message over the radio. The event was the dedication of the Francis Scott Key Memorial in Baltimore.
1951 - Univac 1, the world's first commercial electronic computer was unveiled in Philadelphia. It was installed at the Census Bureau and utilized a magnetic tape unit as a buffer memory.
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14 June Knowledge History - Science, Engineering and Management
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