View Historical Events by Day:
What Happened Today in History on August 13
Explore the historical events that shaped our world on August 13th. From major milestones to cultural achievements, see what happened on this day in history. Dates for earlier events may be approximate.
Note: Sources for the historical content shown, include research and reviews of relevant Online History Resources or printed material. When possible, we show a link to a source which provides additional or unique perspective about the event.
We do our best to provide accurate information but would appreciate being notified if any incorrect information is found. You may do so by using our Feedback link.
The official start date of the Manhattan Engineer District, (MED) Better known as the Manhattan Project. It was top-secret, U.S. led research and development project during World War II with the goal of developing the first atomic bombs. It involved scientists, engineers, and the military, and resulted in the creation of nuclear weapons that were used against Japan, ending the war but also ushered in the atomic age. The project was disbanded on August 15 1947 More
...
East Germany begins to seal off around Berlin. First, a wire barrier was constructed and a few days later the wire was replaced by a six-foot-high, 96-mile-long wall of concrete blocks. It hoped this measure would put an end to the mass exodus to Berlin. More
President Reagan signs the Economic Recovery Tax Act of 1981 (ERTA), the 185-page that fulfilled his campaign promise to cut taxes. The act helped accelerate economic growth but it is blamed for being a major contributor to the growth of Income inequality in the U.S. which is now at heights not seen for a century. More