Facebook launched in a Harvard University dorm room in 2004

Before 'The Facebook', Mark Zuckerberg made 'Facemash.com'

During Mark Zuckerberg's sophomore year at Harvard, he built a website that allowed users to rank and rate people's pictures from the school's online "facebooks" called Facemash.com, which quickly went viral. He was placed on academic probation for violating the school's rules around data, privacy, and computer usage. Zuckerberg says the website was a prank and he never intended for so many people to see it. FaceMash is credited with being the predecessor to Facebook.

The early success of Facebook made Mark Zuckerberg a college campus celebrity

Within 24 hours of launching in 2004, more than 1,200 Harvard students signed up to the platform, which quickly expanded to other Ivy League and Boston-area schools within months. By year's end, Zuckerberg left Harvard to run the company in California.

At 12 years old, Mark Zuckerberg built a messaging platform for his family called 'ZuckNet.'

In November 2005, Mark Zuckerberg officially left Harvard

Mark Zuckerberg enrolled in Harvard in 2002 and studied computer science and psychology. He officially dropped out in 2005 to run Facebook, now Meta. When he returned to campus to officially drop out, he met with professors and students to recruit programmers for the company.

Facebook settled a lawsuit over Zuckerberg allegedly stealing the original idea for the company for $65M

While at Harvard, three students (Cameron Winklevoss, Tyler Winklevoss, and Divya Narendra) approached Mark Zuckerberg with the idea for a platform exclusively for Harvard students called ConnectU. Those students sued Facebook, alleging that Zuckerberg stole the idea from the trio.

Randi Zuckerberg, Mark's sister, was Meta's first marketing director

Randi is two years older than Mark and also attended Harvard before working in advertising. Before joining Facebook, Randi worked in digital advertising at Ogilvy & Mather. In 2018, Randi attracted criticism for saying Holocaust deniers shouldn't be banned on Facebook. She's also previously been criticized for her own seemingly contradictory sentiments on Facebook's privacy rules.

Mark Zuckerberg credits some of Facebook's success to constant evolution

Before becoming the head of OpenAI, Sam Altman was the president of Y Combinator—a startup accelerator company that supported companies like Airbnb, DoorDash, and Coinbase. In 2016, Altman interviewed Zuckerberg about creating Facebook and its growth over time. Zuckerberg said that, unlike other companies (think: CourseMatch), Facebook kept growing and adding new features, which prevented the app from becoming obsolete.

Mark Zuckerberg demos the Quest 3 VR headset

Meta, back when the company was still known as Facebook, once tried and failed to launch a smartphone. With the arrival of the mixed reality era, the company decided to make another hardware play again—and this time, it's having better luck. Meta's aggressively priced Quest headsets offer VR for the masses, and here CEO Mark Zuckerberg shows off the new mixed reality experiences and more available with the latest version, the Quest 3.

Mark Zuckerberg views Meta as a technology company—not a social media company

Despite Meta's core products being social media apps, Zuckerberg is adamant that Meta is a technology company that has built social media apps, but can build and is comfortable building other technologies—like AI-integrated glasses and virtual reality labs.

Why this artist staged a satirical romance with Mark Zuckerberg

Internet performance artist Harriet Richardson is using AI and Meta's social media tools to make it appear as though she's in a serious romantic relationship with Mark Zuckerberg. While the images generate laughs, Richardson also says they're part of a larger satirical project aiming to highlight the larger societal impact of Meta's decision to discontinue fact-checking content across its platforms.

By 2022, Meta was betting strongly on a metaverse strategy for its products

Moving beyond the controversies over fueling misinformation, division, and harm worldwide, Mark Zuckerberg expressed optimism about technology's role in connecting people. Meta's multibillion-dollar investments in integrative AR and VR technologies have further evolved its founder's vision.

Mark Zuckerberg's 2024 rebrand was dubbed the 'Zuckassaince'

Zuckerberg, like Apple cofounder Steve Jobs, wore the same, simple T-shirts and outfits for most of his early career to decrease the decisions he'd have to make on a daily basis. In 2024, Zuckerberg started wearing chunky gold chains around his neck and oversized T-shirts with slogans on them. Some say the "Zuckassaince" is an effort to rebrand Meta as a futuristic company, not just an old social media company for millennials.

In high school, Mark Zuckerberg rejected Microsoft's proposal to buy his music suggestion software for $950K

Mark Zuckerberg and Adam D'Angleo built a website called "Synapse," which created playlists for users based on their listening preferences and an algorithm to suggest new songs, in September 2002.

Mark Zuckerberg met his wife, Priscilla Chan, at Harvard

In Zuckerberg's 2017 commencement speech at Harvard, Zuckerberg said his best memory at Harvard was meeting Priscilla Chan in line for the bathroom at a party. In that speech, he said he told her, "I'm going to get kicked out in three days, so we need to go on a date quickly." The pair got married in 2012 and now have three kids together.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

One Facebook investor turned $500K into $1B

Peter Thiel was Facebook's first big investor. In 2004, he invested $500K into the social network, long before the company owned Instagram or renamed itself "Meta." In 2012, when he sold off most of his stake, he turned that initial $500K investment into more than $1B in cash.

Mark Zuckerberg and Jesse Eisenberg met during Eisenberg's 'Saturday Night Live' monologue

When Jesse Eisenberg hosted "SNL" in 2011 ahead of an Academy Awards appearance for his portrayal of Zuckerberg in "The Social Network," Zuckerberg actually came on stage. That was the first time the two met, and many viewers said the interaction was awkward. Eisenberg tried to meet Zuckerberg before filming "The Social Network," but his producers told him he couldn't for legal reasons.

Harvard awarded Mark Zuckerberg an honorary degree in 2017

Mark Zuckerberg received an honorary degree from Harvard when he returned to the university to give a commencement speech. In his speech, he talked about wealth, racial inequality, political instability, and creating a sense of purpose.

The first social media platforms date back to the late 1990s, and their algorithms were typically chronological, with entities like MySpace and Facebook feeding users content from the most recent posts to the oldest.

Mark Zuckerberg said some of the details in 'The Social Network' movie were spot-on—but most of the story arcs were inaccurate.

Meta Platforms Inc., which owns both Facebook and Instagram, is the largest social media company in the world.

Meta disclosed Mark Zuckerberg's interest in martial arts as an investment risk

During the pandemic, Zuckerberg began practicing Brazilian jiu-jitsu and even won gold and silver medals at his first tournament in 2023. His interest in martial arts and water sports, like wakesurfing and hydrofoiling, prompted the company to disclose those hobbies as risks for potential investors, given they pose a threat to Zuckerberg's health and he retains a significant amount of control over Meta.

The majority of Meta's revenue comes from advertising

Since introducing Facebook Ads in 2007, ads have become the main way Meta makes money and keeps the social media platforms free for users. Meta's targeted ad program allows businesses to set a maximum advertising budget and be charged only for the actual number of impressions an ad receives. In 2025, $196.175B of Meta's $200.966B annual revenue came from advertising.

Facebook's internal documents show that though the company publicly plays down Instagram's harms, its own research found that Instagram has promoted mental health issues for teens.

Mark Zuckerberg testified before Congress eight times between 2018 and 2024

Zuckerberg testified in Congress for the first time in 2018 over Facebook's privacy violations and its failure to detect Russian interference on the app during the 2016 election. Since then, Zuckerberg has appeared a total of eight times to defend Meta against privacy violations, child safety, and more. (Some users may experience a paywall.)

Watch the unveiling of Meta's Quest 3S mixed reality headset

Meta's social apps like Facebook and Instagram are the most high-profile part of its business, but the company has sought building out a hardware line of peripherals like the Quest headset, which combines virtual and augmented reality.

In 2018, Tencent's market capitalization hit $580B, surpassing Facebook (now Meta) for the first time.

Mark Zuckerberg apologized for not doing enough to stop the spread of misinformation on Facebook ahead of the 2016 election

Leading up to the 2016 election, misinformation about both Donald Trump, Hillary Clinton, and even Barack Obama flourished on Facebook. In the final stretch leading up to the election, more than one-quarter of Americans visited a fake news site supporting either Trump or Clinton. Many fake news studies have widely different methods of measuring and assessing the impact of fake news, so the actual impact it had in the 2016 election is unclear.

'Move fast and break things' was one of Mark Zuckerberg's early leadership principles

The phrase was plastered across Facebook's office as a representation of the company's hacker mindset that fueled its early growth. However, Zuckerberg said he has since moved away from that motto and has focused more on sustainability as opposed to breakneck growth.

Three AI startup founders broke the record for the youngest self-made billionaire previously set by Mark Zuckerberg

Mark Zuckerberg became the youngest self-made billionaire in 2006 at 23 years old when Facebook held its initial public offering. In January of 2026, three AI startup founders—Brendan Foody, Adarsh Hiremath, and Surya Midha—broke Zuckerberg's record and became billionaires at 22 years old.

Mark Zuckerberg has long been an advocate for open source technology.

Mark Zuckerberg's dad is a dentist—but he originally wanted to work with computers

Mark Zuckerberg grew up in Dobbs Ferry in Westchester County, about 25 miles north of New York City. His father, Ed Zuckerberg, owned a practice connected to Mark's childhood home, but he was always fascinated by computers. Ed's family was the first in his neighborhood to have a color television, and Ed was an early adopter of computing technology—something that he passed on to Mark. (Some users may experience a paywall.)

The prototype for Tinder was created during a 2012 hackathon

By August 2012, Tinder, which was originally called Match Box, had launched on the Apple App Store. Match Group merged Tinder into its portfolio in 2017, the same year it set its sights on acquiring Hinge. Experts say that Match has not been declared a monopoly in part because monopolies are "hard to prove."

Meta's acquisition strategy for Instagram and WhatsApp led to a 5-year-long antitrust lawsuit

In 2020, the Federal Trade Commission sued Meta as part of the agency's efforts to rein in big tech companies. The FTC alleged that Meta overpaid for Instagram and WhatsApp in a "buy or bury" strategy to gain access to those companies' talent and diminish competition. In 2025, a federal judge sided with Meta, citing intense change in the social media landscape.

Facebook was almost sold to Yahoo! for $1B, but its CEO refused

The board tried to fire Mark Zuckerberg for his resistance, which he blames for failing to communicate the long-term vision of the company. He claims the company has succeeded by launching products quickly to learn faster than its competitors.

Around 87 million users were impacted by Facebook's Cambridge Analytica scandal

Cambridge Analytica, a consulting firm with Russian and conservative ties, harvested data from Facebook users through a research tool that tracked interests across social connections on Facebook. Those profiles were used for targeted ad campaigns supporting Donald Trump in 2016 and pro-Brexit ads. A whistleblower originally said the private data of more than 50 million Facebook users was compromised, but a Facebook officer later estimated the number was around 87 million. Facebook settled the class-action lawsuit over the privacy breach for $725M in 2022.

Facebook launched its 'like' button and Twitter its 'retweet' button in 2009, innovations psychologist Jonathan Haidt argues rewired social media to reward outrage over accuracy.

Mark Zuckerberg has nearly exclusive decision-making authority in Meta

Meta has a dual-class stock structure, meaning there are two types of stock that have different voting rights. Zuckerberg owns 90% of the company's Class B stock, which is allotted 10 votes per share, whereas Class A shareholders get one vote per share. He's also the CEO and the chairman of the board, meaning Zuckerberg has majority control over the company. (Some users may experience a paywall.)

Facebook's algorithm chooses content to display on the News Feed based on user data

It employs machine learning to prioritize posts and ads based on user interactions, content type, and post timeliness, creating a personalized, engaging experience for each user.

Mark Zuckerberg was nearly fired from his own company after refusing to sell Facebook to Yahoo for $1B

In 2006, Yahoo tried to buy Facebook for $1B. Despite enthusiasm from nearly all of Facebook's management team and board (which included PayPal cofounder and famed investor Peter Thiel at the time), then 22-year-old Zuckerberg turned down the offer, insisting that Yahoo undervalued the company and didn't have a clear vision for the future. Zuckerberg has since said he regrets not being clear about his intentions to grow the company with his team before the Yahoo bid, as almost all of the company's management team left after he turned down the offer.

Computer scientists first started trying to optimize dating using computers in the 1950s.

A video compares two visions for the metaverse: one from Nvidia and one from Facebook

The CEOs of top technology companies Nvidia and Meta recently revealed their visions for the metaverse of the future. As of 2021, both Jensen Huang and Mark Zuckerberg were bullish on virtual world-building, although Huang seemed more focused on the metaverse's business implications than its social ones, which Zuckerberg prioritized.

Google began as a Stanford University dorm room project

Launched in 1998, Google revolutionized search engines with its clean design and PageRank algorithm. As of 2025, Google has about 90% of the search market share but faces new challenges from AI-powered competitors and regulatory scrutiny.

Mark Zuckerberg attended one of the most prestigious prep schools in America

Phillips Exeter Academy in New Hampshire is one of the most prestigious private preparatory schools in the US. Zuckerberg attended the academy from 2000 to 2002 and was captain of the fencing team.

Facebook dominated US social ad spend in the first half of 2024

This data visualization shows the social media platforms where advertisers spent the most money in the first six months of 2024, with Facebook leading the pack taking home 36.3% of US social ad spend.

Extremist groups have used Facebook to propagate misinformation and recruit members

For years, Facebook has been accused of taking a too-light approach to content moderation. While it's made strides in recent years, problematic content continues to thrive on the company's platforms.

The dating app Hinge markets itself as 'designed to be deleted'

Harvard graduate Justin McLeod started Hinge in 2011. Since then, despite competition from larger apps like Bumble and Tinder, it's grown into the third-largest dating app by market share in the US, bringing in roughly $396M in revenue as of 2023.

As of April 2022, a million people access Facebook on the dark web monthly

While those using an anonymized web browser, such as Tor, have been able to access the social network's .onion site since 2014, the announcement marks a major milestone by the tech giant, which has worked to ensure its users can bypass restrictions by various governments and continue visiting the site.

For Reddit's founders, the company's early days included choosing a dinner with Y Combinator's Paul Graham over a spring break trip, a $10M Condé Nast acquisition, and other pivotal moments.

Where did emoticons come from?

Carnegie Mellon professor Scott E. Fahlman says he's one of the original creators of emoticons. In the 1980s, the Carnegie Mellon computer science community was already making heavy use of online bulletin boards, and users began to run into issues of attempted humor not coming across through virtual text. The solution? Using "joke markers" to denote non-serious posts, which prompted Fahlman to propose :-) and its inverse :-(.