January 4, in history

1847 - Samuel Colt sells his first revolver pistol to the United States government.

1936 - Billboard magazine publishes its 1st music hit parade

1959 - Luna 1 (Mechta) becomes 1st craft
to leave Earth's gravity

2010 - The Burj Khalifa in Dubai, the world's tallest building, is officially opened.

Source:Today in history

Sharing is caring