Gloria and Carl Page had their second son, Lawrence, on March 26, 1973. They both taught computer science at Michigan State University and filled their home with computers and tech magazines that enthralled a young Larry.
They enrolled him in a Montessori school. Such programs are known to foster independence and creativity, and Page now credits "that training of not following rules and orders, and being self-motivated and questioning what's going on in the world" as influencing his later attitudes and work.
At 12, Page read a biography about the brilliant inventor Nikola Tesla, who died in debt and obscurity. The ending made him cry, and inspired Page to not only want to build world-changing technologies, but to have the business sense to know how to spread them. "I figured that inventing things wasn't any good," he has said. "You really had to get them out into the world and have people use them to have any effect."
Besides tinkering with electronics, Page also played saxophone growing up, and he once told Fortune that his musical training in part led "to the high-speed legacy of Google." (Apparently he's also been trying to pick up percussion, as of late.)
During his time as an undergrad at University of Michigan, Page started mulling the future of transportation, something he's still interested in today. He joined the school's solar-car team (pictured below) and suggested that Michigan build a monorail-like "personal rapid-transit system" between its campuses.
After graduation, Page headed west to Stanford for his Ph.D. There he met Sergey Brin in 1995. The two became close friends, geeking out about computer science.
They registered the domain Google.com in September 1997, with the mission to organize the world's information.
Both Page and Brin are "burners." The very next year they created the first Google Doodle ever to let people know they weren't around to do damage control if the site broke because they had retreated to the Nevada desert for the free-wheeling art festival Burning Man.
Page has admitted that he's better at big-picture ideas than management, in part because he doesn't enjoy dealing with people. As a leader, he focuses on results and has an affinity for uber-ambitious ideas.
Omid Kordestani, Google's business founder and a confidante of Page, describes him as "curious, idealistic" and "focused on changing the world and having impact through technology." He doesn't shy away from huge goals, like mapping the entire planet or digitizing every book ever published.
Page ran Google as CEO until 2001, when Eric Schmidt was brought in to lead the company as its "adult supervision." Both Brin and Page were wary of all the CEO candidates, but when they learned Schmidt was originally a programmer and a burner, too, they felt that at least he'd be a "cultural fit" at the company.
Page wasn't happy about having to relinquish his CEO spot at first, but gradually became comfortable being less involved in the day-to-day management of the company.
In 2007, he actually felt like he was still spending too much time in meetings, so he got rid of his assistants so that anyone who wanted to talk to him had to physically track him down.
During this time he was still very actively involved in Google's product and vision, though. He orchestrated the acquisition of Andy Rubin's company Android — without telling Schmidt until he'd sealed the deal.
But after 10 years, Page decided to take back the CEO title in 2011.
He reorganized the company's senior management, and before the end of 2012, the company had launched Google+, its first Chromebook laptop, Google Glass, high-speed-internet service Fiber, and more.
He continued leading Google until 2015, when the company blew up its corporate structure, and Page became the CEO of parent company Alphabet, instead.
In his current role, Page spends much of his time researching new technologies, meeting and enlisting really smart people, and imagining what Alphabet's next moonshot bet might be.
He's currently ranked No. 8 on Forbes' list of billionaires, with a net-worth of $39 billion.
Throughout it all, Page has kept information about his personal life closely guarded. It was a rare event when he opened up about having vocal-cord paralysis in 2013. The condition makes his voice softer than it used to be and long monologues difficult.
Page isn't particularly showy with his wealth, but he lives well. He, his wife, and two kids reside in a Palo Alto compound that includes a $7 million home as well as an "eco-mansion" with a rooftop garden and solar panels.
Page's flashiest purchase is perhaps the 194-foot super-yacht called "Senses" that he bought for $45 million in 2011. It has a helipad and a Jacuzzi on its deck.
And collectively, Page, Brin, and Schmidt have also purchased eight private jets.
Page also dedicates part of his wealth to causes he believes in. He's a personal investor in Planetary Resources, which aims to mine asteroids; Tesla; and Twigtale, a personalized children's book startup founded by his sister-in-law.
In 2006, he also started The Carl Victor Page Memorial Foundation in honor of his father. Carl Page passed away soon after Larry left for grad school because of complications caused by the polio he contracted as a child. The foundation had assets of more than $1.37 billion at the end of 2014.
But perhaps the best part of Page's job is that he also gets to chase his far-flung aspirations through Alphabet. The company's search-engine ads-machine pumps out so much money that Alphabet could afford to lose the $3.56 billion it lost in 2015 on "Other Bets" that Page is passionate about, like building smarter home appliances, spreading internet through its Project Loon balloons, and extending human life.
Now, Page seems most interested in flying cars. Page is reportedly an investor in two companies that are working on the technology: Kitty Hawk and Zee.Aero. Page has reportedly invested $100 million of his own money into Zee.Aero.