Facebook Origins
https://www.cnn.com/interactive/2019/02/business/facebook-history-timeline/index.html

Getty
Harvard sophomore Mark Zuckerberg creates a web site called Facemash in his dorm room and shares the link around campus. Zuckerberg hacked the Harvard student database to populate the site with pictures and make a “hot or not” game, in which users compared photos of students. That game was eventually shut down.
The Facebook launches
February 4

Getty
Zuckerberg and co-founders Dustin Moskovitz, Chris Hughes and Eduardo Saverin launch Facebook for Harvard students. A month later it opens to students of Yale, Columbia and Stanford. Facebook would soon become a phenomenon across college campuses in America.
Silicon Valley calls
June

Getty
Zuckerberg leaves Harvard to work on Facebook out of a rental house in Palo Alto, California, that serves as headquarters. He teams up with Napster’s Sean Parker, who later becomes president and moves in. PayPal cofounder Peter Thiel makes a $500,000 investment and helps steer others toward the company.

Getty
Introduces “The Wall,” an area of a user’s profile where friends and fans could post public messages. The feature proves popular and sticky, luring users back to check messages often. Three months later, on December 1, the company announces that it has crossed 1 million active users.
High School users
September 1

Getty
Facebook expands beyond college campuses for the first time and opens to high school students.
Thanks, but no
July

Getty
In a controversial, but prescient move, Facebook turns down a $1 billion acquisition offer from Yahoo. Zuckerberg reportedly thought Yahoo! undervalued the company’s potential.
Big money from Microsoft
October 24

Getty
Microsoft purchases a 1.6% share of Facebook for $240 million. The investment values the company at $15 billion. A month later the company launches its Beacon ad program, which tracks a Facebook user’s behavior on third-party sites. The product turns into a public relations disaster because of user privacy concerns.
Winklevoss twins settle
February 22

Getty
Facebook settles a longstanding lawsuit with ConnectU, a company started out of Harvard by the Winklevoss brothers. The twins had accused Mark Zuckerberg of stealing their idea and turning it into Facebook. The settlement doesn’t end the battle. The Winklevoss twins continue to pursue legal action into 2011.

Getty
Facebook hires Google executive Sheryl Sandberg as COO. Sandberg brings leadership experience as well as political acumen from her time as chief of staff for the Treasury Department under Bill Clinton. Many consider her an adult in the room with Zuckerberg.
Look, a Like!
February 9

Getty
Facebook turns on the iconic Like button.
Want to be friends?
August 10

Getty
Facebook agrees to acquire FriendFeed, a social sharing site that had pioneered a Like function and real time news updates, similar to Twitter. Facebook had already borrowed many of FriendFeed’s concepts, but the acquisition includes the company’s developers and knowledge. Financial terms of the acquisition were not released.
December 18

Getty
Protests in Tunisia erupt and spark the Arab Spring, which spreads to neighboring countries over the next few weeks and months. Facebook is credited as one of the catalysts for a youth revolution in the Middle East. The event shows just how powerful a tool Facebook can be for the purposes of political organizing.
2011
Timeline changes everything
September 22

Getty
Zuckerberg introduces the Facebook Timeline at the company’s F8 developer conference and effectively kills “The Wall.” The new feature reorganizes a user’s posts and puts them in chronological order. Predictably, users hate the change and many are put off when the new format surfaces old photos and posts.
Big bet on photos
April 9

Getty
The company agrees to acquire Instagram for $1 billion. The purchase would go on to become one of Facebook’s most important, and most defensive moves. The photo sharing service later provides a platform with which to fend off Snapchat’s growing influence
Facebook goes public
May 18
Facebook raises $16 billion in a public offering, making it the largest technology IPO at the time. The first day of trading is plagued by problems on the Nasdaq; it starts late and encounters glitches. Some investors aren’t sure if their trades went through, and some later sue.
Big neighborhood
October 4

Getty
Facebook crosses 1 billion monthly active users. The company, which now touches one out of every seven people on Earth, thrills investors and advertisers as it continues to march toward internet dominance.
https://www.octoboard.com/reports/facebook-reach-report