◆ On this day

December 12

4 sourced moments from December 12 in history: Pennsylvania ratified the U.S. Constitution (1787); The first radio signal across the Atlantic was a single letter S (1901); Frank Sinatra was born in Hoboken (1915), plus 1 more.

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4 things happened on December 12

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2015 Earth & Climate · Weather & Climate

Nearly 200 nations adopted the Paris Climate Agreement

On December 12, 2015, 195 Parties struck the first deal binding every nation to fight climate change together.

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1915 Culture & Arts · Music

Frank Sinatra was born in Hoboken

On December 12, 1915, a forceps-delivered baby in a Hoboken kitchen grew into the voice that defined American popular song.

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1901 Language & Communication · Media & Communication

The first radio signal across the Atlantic was a single letter S

In 1901 three faint clicks crossed 2,000 miles of ocean and ended the belief that radio could not bend with the Earth.

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1787 Society & Economy · Politics & Law

Pennsylvania ratified the U.S. Constitution

Five days after Delaware, Pennsylvania became the second state to approve the new Constitution after a fierce, divisive convention fight.

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