Bill Gates

William Henry Gates III was born on October 28, 1955, in Seattle, Washington, to William H. Gates Sr., a prominent attorney, and Mary Maxwell Gates, a businesswoman and civic leader who served on corporate boards including First Interstate Bank and the United Way. Gates grew up in a household that valued education, rigorous debate, and public service. His parents encouraged intellectual curiosity and competition among their three children.

At age thirteen, Gates enrolled at Lakeside School, an exclusive preparatory school in Seattle, where his life changed fundamentally. The school's Mothers' Club used proceeds from a rummage sale to buy a Teletype Model 33 computer terminal in 1968, giving students access to a General Electric computer through a time-sharing arrangement. Gates became obsessed. He taught himself BASIC programming, skipped gym class to work on the terminal, and formed a fast friendship with Paul Allen, two years his senior, who shared his passion for computing.

By age seventeen, Gates and Allen had formed their first business venture, Traf-O-Data, which analyzed traffic data using a processor built around an Intel 8008 chip. Though the product had limited commercial success, it established the partnership and business instincts that would define Microsoft. Gates scored 1590 out of 1600 on his SATs and enrolled at Harvard University in 1973, intending to study law. But he spent more time in the computer lab than in class, and when the opportunity arose to build software for the first microcomputer, he left Harvard after two years—a decision that would reshape the technology industry.

In January 1975, Popular Electronics featured the Altair 8800, the first commercially successful personal computer kit. Gates and Allen saw the future immediately: a computer on every desk, in every home. They contacted MITS, the Altair's manufacturer, claiming they had developed a BASIC interpreter for the machine—though they had not yet written a single line of code. After a frantic eight-week programming sprint, Gates demonstrated the software in Albuquerque. It worked. MITS licensed their interpreter, and in April 1975, Gates and Allen formally founded Microsoft (originally 'Micro-Soft').

Gates proved to be both a brilliant programmer and a fierce businessman. In 1976, he wrote 'An Open Letter to Hobbyists,' challenging the widespread copying of software and arguing that developers deserved compensation—a controversial stance when software was often shared freely, but one that established commercial software as a legitimate industry. Microsoft moved to Bellevue, Washington, in 1979 and began licensing its software to multiple hardware manufacturers, a strategy that would prove transformative.

The pivotal moment came in 1980 when IBM approached Microsoft to provide an operating system for its upcoming personal computer. Gates secured the contract, then purchased an existing operating system called QDOS for fifty thousand dollars, modified it, and licensed it to IBM as PC-DOS—while crucially retaining the right to license the same system, MS-DOS, to other manufacturers. This decision, perhaps more than any other, created Microsoft's empire. As IBM-compatible PCs proliferated, MS-DOS became the industry standard.

Through the 1980s and 1990s, Microsoft expanded relentlessly. The company launched Microsoft Windows in 1985, graphical software that would eventually dominate personal computing. Gates drove the company with legendary intensity, often reviewing code personally, challenging employees in confrontational meetings, and working exhausting hours. Microsoft went public in 1986, making Gates a billionaire at age thirty-one. Excel, Word, and Office followed, establishing Microsoft's dominance in productivity software. By the late 1990s, Windows ran on more than 90 percent of personal computers worldwide, and Gates was the world's wealthiest person.

But success brought scrutiny. The U.S. Department of Justice filed antitrust charges in 1998, arguing that Microsoft had abused its monopoly position, particularly by bundling Internet Explorer with Windows to crush Netscape. The trial, which included a widely criticized videotaped deposition of Gates, resulted in a 2000 ruling that Microsoft had violated antitrust law. Though the company avoided a breakup through a 2001 settlement, the case marked the end of Gates's first era. In 2000, he stepped down as CEO, becoming chief software architect, and began devoting serious attention to philanthropy.

Gates had established his first philanthropic vehicle, the William H. Gates Foundation, in 1994, focusing on global health, but his commitment deepened dramatically around 2000. The catalyst, he later recounted, was reading about diseases killing millions of children in developing countries—diseases that were preventable or curable but ignored because the victims had no purchasing power. Rotavirus, for instance, killed half a million children annually but received minimal research funding because it rarely killed children in wealthy nations.

In 2000, Gates and Melinda French Gates, whom he had married in 1994, consolidated their charitable foundations into the Bill & Melinda Gates Foundation, which would become the world's largest private foundation. Warren Buffett's 2006 pledge of the bulk of his fortune—some $31 billion at the time—to the Gates Foundation dramatically expanded its resources and scope. As of 2024, the foundation's endowment exceeds $75 billion.

Gates approached philanthropy with the same data-driven intensity he brought to software. The foundation identifies problems where intervention can save the most lives per dollar spent, then funds research, vaccine development, drug distribution, and health infrastructure in developing countries. Early priorities included eradicating polio, controlling malaria, preventing HIV transmission from mothers to children, and improving sanitation in areas without sewer systems.

The foundation's impact has been measurable and immense. It has spent billions on vaccine development and distribution through Gavi, the Vaccine Alliance, helping immunize more than a billion children. Polio, which paralyzed hundreds of thousands annually when the foundation began, now causes fewer than a hundred cases per year globally, confined primarily to Afghanistan and Pakistan. The foundation's malaria work has contributed to a dramatic decline in deaths, from nearly a million annually in 2000 to fewer than 600,000 by recent counts, through funding for bed nets, artemisinin-based treatments, and research into new interventions including a malaria vaccine approved in 2021.

Gates stepped down as Microsoft's chief software architect in 2008 to work full-time at the foundation. He retained the title of chairman until 2014 and served on the board until 2020, but his primary focus shifted definitively to global health, agriculture, sanitation, and—later—climate change. In 2010, he and Melinda launched the Giving Pledge with Warren Buffett, persuading dozens of billionaires to commit the majority of their wealth to philanthropy.

The Gates Foundation operates with corporate efficiency and an emphasis on metrics: lives saved, vaccines delivered, infections prevented. This approach has drawn both praise and criticism. Admirers credit the foundation with introducing accountability and innovation to global health. Critics argue that concentrating so much influence in a private foundation—however well-intentioned—allows unelected individuals to shape global priorities, sometimes sidelining government agencies or imposing priorities on recipient countries. Some public health experts have questioned the foundation's early focus on specific diseases rather than building general health infrastructure, though the foundation has increasingly funded health systems strengthening.

Gates's personal reputation has also evolved. Once seen primarily as a ruthless monopolist, he gradually became recognized as a thoughtful philanthropist, though never without complexity. His 2021 divorce from Melinda French Gates, after twenty-seven years of marriage, brought uncomfortable scrutiny, including revelations about Gates's past behavior, meetings with Jeffrey Epstein, and workplace conduct. Melinda French Gates subsequently announced she would pursue separate philanthropic work, and the foundation restructured its governance.

Nonetheless, Gates has remained singularly focused on deploying evidence and resources toward existential challenges. His 2021 book, 'How to Avoid a Climate Disaster,' applied his analytical method to climate change, arguing for massive investment in clean energy innovation and acknowledging his own substantial carbon footprint. Critics noted the irony of a billionaire who travels by private jet advising on emissions, but Gates has funded numerous climate technology start-ups and committed billions to developing breakthrough energy technologies through Breakthrough Energy Ventures.

Throughout the COVID-19 pandemic, Gates became both a leading voice for vaccine equity and a target of conspiracy theories. The foundation committed billions to vaccine development, manufacturing, and distribution, helping fund the Oxford-AstraZeneca vaccine and supporting COVAX, the initiative to provide vaccines to lower-income countries. Simultaneously, Gates became a focal point for misinformation, with baseless theories alleging he planned to implant microchips through vaccines or had created the virus. He addressed the absurdity of such claims while continuing to advocate for pandemic preparedness.

As Gates approaches his seventh decade, his legacy remains dual and complex. He will forever be the co-creator of Microsoft, the company that brought computing to the masses, established the software industry's commercial model, and made him one of history's wealthiest individuals. That wealth, in turn, enabled the second act: a systematic, data-driven effort to solve problems—disease, poverty, inadequate sanitation, climate change—that markets alone will not address.

The foundation's work continues at scale. Current priorities include eradicating polio entirely, developing next-generation vaccines, reducing child mortality, improving agricultural productivity for smallholder farmers in Africa, reinventing toilets for areas without sewers, and accelerating clean energy innovation. Gates has pledged that virtually all his wealth will go to the foundation, leaving his three children a small fraction—ensuring that his fortune continues funding global problem-solving long after his death.

Whether history judges Gates primarily as a technological pioneer, a monopolist, or a humanitarian will likely depend on what the foundation ultimately achieves and how the model of billionaire philanthropy itself is assessed. What is undeniable is that few individuals have influenced both the digital revolution and global public health as profoundly. From writing code in a Harvard dorm room to funding malaria vaccines in sub-Saharan Africa, Gates has spent five decades obsessively solving problems at the largest possible scale, for better and occasionally worse, with rigor, resources, and relentless focus.