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📅 Sep 17, 1787
Delegates Sign the United States Constitution in Philadelphia
On September 17, 1787, delegates in Philadelphia signed the United States Constitution, replacing the Articles of Confederation.
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📅 Sep 17, 1939
The Soviet Union Invades Eastern Poland
On September 17, 1939, Soviet forces invaded eastern Poland under the secret protocol of the Nazi-Soviet Pact, partitioning the country.
⛳Poland
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📅 Sep 17, 1944
Operation Market Garden Begins in the Netherlands
On September 17, 1944, Operation Market Garden dropped 35,000 airborne troops into the Netherlands to seize bridges to Arnhem.
⛳Netherlands
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📅 Sep 17, 1980
Solidarity Is Founded at the Lenin Shipyard in Gdansk
On September 17, 1980, Polish workers founded Solidarity at Gdansk, the first independent trade union in the Soviet bloc.
⛳Poland
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📅 Sep 17, 1991
North and South Korea Join the United Nations Together
On September 17, 1991, North and South Korea joined the United Nations as separate states, after decades of rival claims to represent all of Korea.
⛳North Korea ⛳South Korea