The Huffington Post was launched, founded by Arianna Huffington, Andrew Breitbart, Kenneth Lerer, and Jonah Peretti.
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President Barack Obama officially declared his support of same-sex marriage.
A steam locomotive called City of Truro became the first steam engine to go over 100 miles per hour.
President Joe Biden signed the 2022 Lend-Lease act to send military equipment to Ukraine.
John Burr patented a better rotary blade lawn mower, designed with traction wheels and a rotary blade that would not easily get stuck with grass clipping.
A stampede killed 129 people in Ghana.