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February 2004
Mark Zuckerberg started Facebook in his dormitory at Harvard University. -
June 2004
Facebook moves its headquarters to Palo Alto, California. -
September 2006
Facebook begins to allow anyone over 13 join. It also introduces News Feed, which lets users see friends' Wall posts in one place. -
March 2008
Sheryl Sandberg is hired as chief operating officer of Facebook. -
September 2011
Facebook introduces a profile page called a timeline. -
June 2015
Stock rises 3% to reach an all-time high. The company's market value is close to $245 billion, making it worth more than Walmart, a $235 billion company. -
August 2015
Facebook hits a milestone when 1 billion users log into Facebook in a single day. -
August 2017
Facebook rolls out the "Related Articles" feature that provides links to stories from fact checking sites such as Snopes and PolitiFact. -
March 2018
A group of Facebook investors file a federal lawsuit against the company for allegedly making "materially false and misleading statements" about its privacy policies. This caused the company's value to plunge nearly $50 billion in a Wall Street sell off triggered by the Cambridge Analytica scandal.