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

Mark Zuckerberg owns a cattle ranch in Hawaii

Zuckerberg owns a cattle ranch on Kauai, where he says his goal is to raise the best beef in the world. Zuckerberg has said that he raises Wagyu and Angus and feeds them macadamia meal and beer, both of which are produced on the cattle ranch. In January 2024, Zuckerberg said his daughter thought his full-time job was cattle ranching.

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.

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.

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.

Read Mark Zuckerberg and Priscilla Chan Zuckerberg's $45B letter to their daughter

After giving birth to their daughter, the Zuckerbergs launched the Chan Zuckerberg Initiative in 2015. The pair announced the charitable organization's creation in a letter addressed to their daughter. The Zuckerbergs pledged 99% of their earnings from Facebook over the course of their lives to advance education, cure disease, and transform public policy, something the letter says is a commitment to their daughter's future. The organization has since shifted its focus to artificial intelligence and science.

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.

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 has long been an advocate for open source technology.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.)

Ray Dalio grew up in New York City, and his dad was a jazz musician

Dalio grew up in the Jackson Heights neighborhood in Queens—though his family moved to the city's suburbs when he was eight-years-old. His father played music in famous Manhattan nightclubs like the Copacabana, while his mother stayed home.

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.

Mark Zuckerberg has named all three of his daughters after Roman emperors

Zuckerberg studied Latin in high school and became interested in ancient Rome. He and his wife, Priscilla Chan, went to Rome on their honeymoon. His daughters—August, Maxima, and Aurelia—are all named after Roman emperors.

'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 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.

Facebook launched in a Harvard University dorm room in 2004

The controversial "FaceMash," where students rated each other's attractiveness, was the precursor to Mark Zuckerberg's social network. The platform rebranded as Meta after several acquisitions and a push into virtual reality, distancing itself from controversies.

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.

Jeff Bezos came from humble beginnings and spent much of his childhood on a cattle ranch, where his grandfather made his own needles for the cattle by hand.

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.)

Jeff Bezos’ biological father and mother married as teenagers—and had Jeff a year later

His biological father, Ted Jorgensen, was a circus performer at the time. He later gave up custody of Jeff and became a bicycle repairman in Phoenix, Arizona. Ironically, the last time Jorgensen saw Jeff as a child was in a Walmart where Jorgensen worked. This video dives into the relationship between Jeff Bezos and his estranged biological father, who passed away in 2015.

Jeff Bezos’ adoptive father Mike Bezos immigrated to the US from Cuba at age 16

Mike Bezos’ mother made a coat out of cleaning rags for him before he immigrated, assuming that the United States would be very cold. Mike and Jeff told the story of Mike’s journey to the US and early days in America together in this video.

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.

When he first enrolled at Princeton University, Jeff Bezos wanted to study physics

He later changed his major to electrical engineering and computer science. He graduated Summa Cum Laude and received job offers at Intel, Nokia, and Accenture, but he declined those offers in favor of a job at a fintech startup.

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.

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.

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.

Elon Musk's first company was an online business directory called 'Zip2'

Musk started the online alternative to Yellow Pages in 1995 with his younger brother. Musk sold the company for $305M in 1999.

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.