September 17: Fun Facts about Today in History

Today in History

On September 17, learn about the most interesting events and historical facts that occurred throughout history. The 260th day of the Gregorian calendar is September 17. The Hungarian king, Louis the Great, crowned his daughter Mary as “king” and successor, and Boston, Massachusetts was established. The Camp David Accords were signed between Israel and Egypt.

Virgo is the zodiac sign for September 17th. Hank Williams, Phil Jackson, and Bryan Singer all have famous birthdays. It’s Constitution Day today.


(September 17, 1787)
The Constitution is signed in Philadelphia, where the United States was founded. photo source:


Happy Birthday! (September 17, 1923)
Hank Williams, American singer-songwriter and guitarist. photo source:

(September 17, 1939)
The Soviet Union's invasion of Poland began during World War II. photo source:

(September 17, 1961)
Pittsburgh, Pennsylvania's Civic Arena, the world's first retractable roof stadium, goes into operation. photo source:

(September 17, 1991)
The United Nations is expanded to include Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands, and Micronesia.

Written by James

James has always been intrigued by dinosaurs, the universe, technology, and animals. With a Bachelor of Computer Science and years of writing expertise, he joined World Amazing Facts in 2021 as a staff writer.

Our team at World Amazing Facts is committed to verifying the accuracy of our content. It's possible that we'll get something wrong, or that our knowledge may become obsolete. Please let us know if you see any errors in the information provided.

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