Short answers, pulled from the story.
The Huffington Post was launched on the 9th of May 2005 by Arianna Huffington, Andrew Breitbart, Kenneth Lerer, and Jonah Peretti. The founders created the site as a digital experiment to challenge the dominance of the Drudge Report and provide a progressive counterweight to conservative news aggregation.
The Huffington Post won a Pulitzer Prize in 2012 in the category of national reporting for senior military correspondent David Wood's Beyond the Battlefield. This achievement made it the first commercially run United States digital media enterprise to win a Pulitzer Prize.
AOL acquired The Huffington Post for $315 million in March 2011. The deal brought Arianna Huffington on board as president and editor-in-chief and integrated the site into AOL's existing properties including Engadget and TechCrunch.
BuzzFeed acquired The Huffington Post from Verizon Media on the 16th of February 2021. Following the acquisition, HuffPost Canada was shut down and ceased publishing on the 9th of March 2021.
The site officially changed its name to HuffPost in April 2017. This rebranding included changes to the website design, logo, and content reporting strategies.