The Huffington Post was launched, founded by Arianna Huffington, Andrew Breitbart, Kenneth Lerer, and Jonah Peretti.
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The first flight over the North Pole was completed, flown by Richard E. Byrd with co-pilot Floyd Bennett.
The noir psychological thriller film 'Vertigo,' directed by Alfred Hitchcock, was released.
A steam locomotive called City of Truro became the first steam engine to go over 100 miles per hour.
The United States became the first country to legalize a birth control pill.
President Barack Obama officially declared his support of same-sex marriage.
