How are the accomplishments in this archive verified?

Every entry — 919 accomplishments at last count — is checked against the public record before publication: primary sources such as SEC filings, foundation reports, published books, and recorded talks where they exist, and reputable secondary coverage where they don't. Entries that can't be verified don't get published, and each one carries its source.

THE GATES EFFECT

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Co-founded Microsoft with Paul Allen at age 19 — Albuquerque, New Mexico, 1975Wrote his first computer program at age 13 on a GE-225 mainframeMicrosoft's first product: a BASIC interpreter for the Altair 8800IBM licensed MS-DOS from Microsoft in 1980 — the deal that built an empireMicrosoft went public at $21 per share on March 13, 1986Became the world's youngest self-made billionaire at age 31 in 1987Net worth peaked at $101 billion during the dot-com boom of 1999Held the title of world's richest person for 13 of 16 years between 1995 and 2009Windows 95 sold 7 million copies in its first five weeksPredicted the internet's commercial rise in 'The Road Ahead' — 1995Predicted a global pandemic in a 2015 TED Talk — five years before COVID-19Predicted smartphones, social media, and price-comparison shopping in 1999Co-founded the Bill & Melinda Gates Foundation in 2000The Gates Foundation is the world's largest private charitable foundationHas donated over $59.5 billion through the Gates Foundation since 2000Signed the Giving Pledge in 2010 — committed to donating 95% of his wealthThe Foundation has helped vaccinate over 1 billion children worldwideStepped down as Microsoft CEO in January 2000 to focus on softwareLeft the Microsoft board entirely in March 2020Co-founded TerraPower in 2006 to develop next-generation nuclear reactorsTerraPower broke ground on its first commercial reactor in Wyoming — 2023Co-founded Breakthrough Energy in 2015 to accelerate global clean energy investmentAwarded the Presidential Medal of Freedom by President Obama — November 2016Received India's Padma Bhushan, the country's third-highest civilian honor — 2015Harvard gave Gates an honorary degree in 2007 — 32 years after he dropped outReads approximately 50 books per yearHas made over 25 documented predictions that have proven correctMicrosoft surpassed a $500 billion market cap in 1999The Gates Foundation has committed over $21 billion to global health programsAuthored three books: The Road Ahead · Business @ the Speed of Thought · How to Avoid a Climate DisasterCo-founded Microsoft with Paul Allen at age 19 — Albuquerque, New Mexico, 1975Wrote his first computer program at age 13 on a GE-225 mainframeMicrosoft's first product: a BASIC interpreter for the Altair 8800IBM licensed MS-DOS from Microsoft in 1980 — the deal that built an empireMicrosoft went public at $21 per share on March 13, 1986Became the world's youngest self-made billionaire at age 31 in 1987Net worth peaked at $101 billion during the dot-com boom of 1999Held the title of world's richest person for 13 of 16 years between 1995 and 2009Windows 95 sold 7 million copies in its first five weeksPredicted the internet's commercial rise in 'The Road Ahead' — 1995Predicted a global pandemic in a 2015 TED Talk — five years before COVID-19Predicted smartphones, social media, and price-comparison shopping in 1999Co-founded the Bill & Melinda Gates Foundation in 2000The Gates Foundation is the world's largest private charitable foundationHas donated over $59.5 billion through the Gates Foundation since 2000Signed the Giving Pledge in 2010 — committed to donating 95% of his wealthThe Foundation has helped vaccinate over 1 billion children worldwideStepped down as Microsoft CEO in January 2000 to focus on softwareLeft the Microsoft board entirely in March 2020Co-founded TerraPower in 2006 to develop next-generation nuclear reactorsTerraPower broke ground on its first commercial reactor in Wyoming — 2023Co-founded Breakthrough Energy in 2015 to accelerate global clean energy investmentAwarded the Presidential Medal of Freedom by President Obama — November 2016Received India's Padma Bhushan, the country's third-highest civilian honor — 2015Harvard gave Gates an honorary degree in 2007 — 32 years after he dropped outReads approximately 50 books per yearHas made over 25 documented predictions that have proven correctMicrosoft surpassed a $500 billion market cap in 1999The Gates Foundation has committed over $21 billion to global health programsAuthored three books: The Road Ahead · Business @ the Speed of Thought · How to Avoid a Climate Disaster

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Bill Gates Accomplishments

Bill Gates Accomplishments — 919 Verified Events | The Bill Gates Archive

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April 2025

Gates marks Microsoft's 50th anniversary by releasing his original Altair BASIC source code

For Microsoft's 50th anniversary on April 4, 2025, Bill Gates published the original source code for Altair BASIC — the roughly 150-page Intel 8080 assembly-language program he and Paul Allen wrote in 1975 to run on the MITS Altair 8800 — calling it 'the coolest code I've ever written.' Gates reflected on hunching over a PDP-10 in Harvard's computer lab to write what became Microsoft's first product, inspired by the January 1975 issue of Popular Electronics featuring the Altair. The release made the foundational code publicly viewable as a piece of computing history. The milestone prompted broader reflection from Gates on the company's arc from a two-person startup to a global technology giant.

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Personal

October 2018

Microsoft Co-Founder Paul Allen Dies; Gates Pays Tribute to His Indispensable Friend

Paul Allen, who co-founded Microsoft with his boyhood friend Bill Gates in 1975, died on October 15, 2018, at age 65 from complications of non-Hodgkin's lymphoma. Gates paid tribute in a Wall Street Journal essay, writing that 'personal computing would not have existed without him' and that 'Paul deserved more time in life.' Their bond had been complicated — Allen's memoir had aired old grievances — but Gates mourned a friendship that began in a school computer room and changed the world. Allen left a multibillion-dollar legacy spanning sports teams, brain science, and the arts.

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Personal

1979

Before Microsoft, Gates Solved a Famous 'Pancake Sorting' Math Problem

As a Harvard undergraduate, Bill Gates co-authored his only well-known academic paper — 'Bounds for Sorting by Prefix Reversal,' written with professor Christos Papadimitriou and published in 1979 — tackling the so-called 'pancake sorting' problem of how few flips it takes to order a stack of differently sized pancakes. Gates's bound stood as the best known solution for roughly three decades. The paper is a reminder that, before he built a software empire, Gates was a serious mathematical talent.

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Business

1979

Microsoft relocates from Albuquerque to the Seattle area

Microsoft was founded in Albuquerque, New Mexico in 1975 to be near MITS, maker of the Altair computer. After the MITS relationship faded, Bill Gates and Paul Allen moved the young company in January 1979 to Bellevue, Washington — near their Seattle hometown — to tap local engineering talent. The relocation planted Microsoft in the Pacific Northwest, where it would later build its sprawling Redmond campus and help transform the region into one of the world's foremost technology hubs.

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Business

1978

Microsoft's Famous 1978 Albuquerque Staff Photo Captures an 11-Person Startup

A now-iconic photograph from December 1978 captures Microsoft as an 11-person startup in Albuquerque, New Mexico — a shaggy young Bill Gates seated front-left among the scruffy crew — taken just before the company moved to the Seattle area. Often shared with the caption 'would you have invested?', the picture became a symbol of unassuming beginnings: nearly everyone in it grew wealthy as Microsoft conquered the software world. It marked the end of Microsoft's Albuquerque era, where the company was founded to write software for the Altair.

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Business

1978

Microsoft Opens Its First Overseas Office, in Japan, With Kay Nishi

On November 1, 1978, Microsoft opened its first international office — 'ASCII Microsoft' in Japan — through a partnership with entrepreneur Kazuhiko 'Kay' Nishi, whom Bill Gates had befriended over a shared, intense temperament. Nishi became Microsoft's vice president for the Far East and brought in major Japanese customers such as NEC, helping Microsoft software spread across Japan's booming PC market. The Japan beachhead made the tiny Albuquerque company a global player years before Windows, and shaped products such as the MSX home-computer standard.

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Technology

1977

Microsoft Builds Out Its Languages Lineup With FORTRAN and COBOL

Microsoft was a programming-languages company before it was anything else. Building on its breakthrough BASIC, the young firm under Bill Gates expanded its lineup with FORTRAN-80 (1977) and COBOL-80 (1978), plus developer tools such as the Macro-80 assembler — supplying the compilers that let early microcomputers run serious scientific and business programs. Years before MS-DOS and Windows, these languages were Microsoft's bread and butter and a foundation of its developer-first strategy.

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Technology

1977

Microsoft BASIC Becomes the Lingua Franca of Early Home Computers

Long before Windows, Microsoft's BASIC programming language became the common tongue of the first home computers. After Altair BASIC, Bill Gates and Ric Weiland adapted it for the MOS 6502 chip, and in 1977 Commodore licensed Microsoft BASIC outright for a flat $25,000 — putting it at the heart of the Commodore PET, VIC-20, and Commodore 64, while related versions powered machines such as the Apple II. For a generation, learning to program meant typing into Microsoft BASIC — an early, quiet form of the company's industry dominance.

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Personal

December 1977

A 22-Year-Old Bill Gates Is Arrested in Albuquerque, Producing His Famous Mugshot

On December 13, 1977, Bill Gates — then 22 and running the young Microsoft out of Albuquerque, New Mexico — was arrested after being pulled over for driving without a license and running a stop sign, reportedly in Paul Allen's car. The booking produced the grinning mugshot that became one of the most recognizable images in tech lore; Microsoft later nodded to it by using the silhouette as a default profile picture in Outlook. It was not Gates's first such incident — he had also been cited in 1975 for speeding and driving without a valid license, reflecting a youthful reputation for fast driving. Snopes and contemporaneous records confirm the mugshot's authenticity.

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Business

February 3, 1976

Bill Gates Brands Early PC Hobbyists Thieves in His 'Open Letter to Hobbyists'

On February 3, 1976, a 20-year-old Bill Gates published 'An Open Letter to Hobbyists' in the Altair users' newsletter of MITS, accusing the early personal-computer community of rampant software piracy. 'As the majority of hobbyists must be aware, most of you steal your software,' Gates wrote, estimating that fewer than 10 percent of Altair BASIC users had paid for it and asking, 'Who can afford to do professional work for nothing?' The letter — provoked by hobbyists freely copying Micro-Soft's Altair BASIC — drew an angry response from a computing culture built on sharing, and became an early, defining statement of Gates's hard-line stance on commercializing and protecting software.

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Business

1976

Bill Gates publishes his 'Open Letter to Hobbyists' decrying software piracy

In February 1976 a 20-year-old Bill Gates published his 'Open Letter to Hobbyists,' rebuking early personal-computer enthusiasts who copied Microsoft's Altair BASIC without paying. 'Who can afford to do professional work for nothing?' Gates wrote, arguing that rampant copying would prevent good software from being written. The letter outraged a hobbyist culture that saw software as something to share freely, but it became an early and influential articulation of the idea that software is intellectual property worth paying for — a principle central to Microsoft's future.

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Personal

1975

History's Most Famous 'Dropout' Actually Just Took a Leave From Harvard

History's most famous college dropout never exactly dropped out. When Bill Gates left Harvard in 1975 to build Microsoft with Paul Allen, he took a leave of absence rather than formally quitting — and simply never returned, taking advantage of Harvard's flexible leave policy to chase the personal-computer revolution without burning the bridge. Gates finally collected a Harvard degree in 2007 — an honorary one — joking in his commencement address that he could at last tell his father he had gone back and finished.

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No algorithm. No clickbait. No corporate funding. Just one developer and 200+ verified entries — free for every curious person on the internet. If this is worth your time, help keep it alive.

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Technology

1975

Gates and Allen Bluff Their Way to Microsoft's First Product, Altair BASIC

Microsoft's origin turned on a bold bluff. After seeing the Altair 8800 microcomputer on the January 1975 cover of Popular Electronics, Bill Gates and Paul Allen phoned its maker, MITS, claiming to have a BASIC programming language for it — though they had written no code and did not even own an Altair. When MITS expressed interest, Gates and Allen spent roughly eight frantic weeks writing the interpreter (Gates skipping Harvard classes), testing it on a simulated Altair. Allen flew to Albuquerque to demonstrate it; it worked on the first try. Altair BASIC became Microsoft's first product and the foundation of the company.

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Dropped out of Harvard University to co-found Microsoft

Personal

1975

Dropped out of Harvard University to co-found Microsoft

Gates enrolled at Harvard College in 1973, studying mathematics and computer science, before dropping out in his sophomore year to co-found Microsoft with Paul Allen. The decision came after Allen showed him a magazine cover story on the MITS Altair 8800 and both men believed the window to commercialize a BASIC interpreter would close if they waited. Gates later said he was always confident he could return to finish his degree, and Harvard awarded him an honorary Doctor of Laws in 2007.

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Personal

1974

A Teenage Gates Helps Run the Northwest Power Grid in a Job for TRW

Before founding Microsoft, a teenage Bill Gates gained crucial hands-on experience on real-world software. Around 1974, Gates (then on leave from Lakeside School) and Paul Allen were hired by TRW to help debug the computer system managing the Bonneville Power Administration's electrical grid in the Pacific Northwest, earning roughly $165 a week and rooming together in Vancouver, Washington. The intense, high-stakes work sharpened the programming partnership the two would soon turn into Microsoft.

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Personal

1973

Gates Graduates Lakeside as a National Merit Scholar With a Near-Perfect SAT

Bill Gates was a standout student long before Microsoft. Graduating from Seattle's elite Lakeside School in 1973, he was a National Merit Scholar and scored 1590 out of 1600 on the SAT before enrolling at Harvard that fall. His gifts — especially in mathematics — were formidable; he would leave Harvard two years later to start Microsoft, but the early-achiever pedigree became part of the legend.

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Personal

1973

Gates Takes Harvard's Math 55, the Hardest Undergraduate Math Class

At Harvard, Bill Gates enrolled in Math 55 — a legendary, brutally difficult honors course often called the hardest undergraduate math class in the country. Gates was a gifted mathematician (he later co-authored a genuine research paper on 'pancake sorting'), but being surrounded by even more singularly talented mathematicians helped convince him that his future lay in software and business rather than pure math. He left Harvard in 1975, before graduating, to start Microsoft.

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Personal

1973

At Harvard, Gates meets Steve Ballmer before dropping out

Bill Gates entered Harvard in 1973, where he was a restless student who spent more time in the computer lab and playing poker than in class — and where he met Steve Ballmer, his future Microsoft CEO. In 1975 Gates left Harvard to found Microsoft with Paul Allen, betting that the personal-computer revolution would not wait for him to finish his degree.

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No algorithm. No clickbait. No corporate funding. Just one developer and 200+ verified entries — free for every curious person on the internet. If this is worth your time, help keep it alive.

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Personal

1972

Gates's First Best Friend, Kent Evans, Dies in a Mountaineering Accident

Bill Gates's first close friend, Kent Evans, died on May 28, 1972, at age 17 in a mountaineering accident, while the two Lakeside School students were planning to spend the summer working on a programming project together. Gates, who has called it 'the only negative thing in my childhood,' was devastated; he and Paul Allen grew closer afterward. Decades later, Gates devoted a moving passage of his memoir to Evans, reflecting on a brilliant friend whose life was cut short before the computing revolution they had dreamed about.

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Personal

1971

Teenage Gates Tweaks Lakeside's Scheduling Program to Land in Classes With Girls

As a Lakeside School student around 1971, Bill Gates helped write the program that scheduled students into classes — and quietly tweaked it to his own advantage. 'By the time I was done, I found that I had no classes at all on Fridays,' Gates later recalled, 'and even better, there was a disproportionate number of interesting girls in all my classes.' The cheeky episode, which he recounted in a 2005 speech at the school, is a favorite anecdote about his teenage knack for bending software to his will.

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Technology

1971

Teenage Gates's 'Lakeside Programmers Group' lands a payroll-software contract

As a teenager, before Microsoft, Bill Gates pursued a string of programming jobs that foreshadowed his business career. In 1971 Gates, Paul Allen, and two Lakeside schoolmates formed the 'Lakeside Programmers Group' and won a contract with Information Sciences Inc. to write a payroll program, earning royalties and free computer time in return. The deal — one of several paid software gigs Gates took on in his teens, alongside building a class-scheduling system for his school — showed an early knack for turning coding skills into commercial work.

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Personal

1970

Teenage Gates Is Banned From a Computer Center for Exploiting Its Bugs

As a teenager at Seattle's Lakeside School around 1968–1970, Bill Gates and his friends — including Paul Allen — got their first serious computer time from the Computer Center Corporation (C-Cubed). They were caught exploiting bugs in the system to grab extra free time and were banned for a period. The episode ended productively: C-Cubed hired the teenagers to hunt for flaws in its software in exchange for computer access — an early 'ethical hacking' arrangement that gave Gates formative programming experience and, he later said, led to his first real partnership with Allen.

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[FAQ.LOG] · grep 'bill gates accomplishments'

The Questions Everyone Asks

QUERY_01

What are Bill Gates's greatest accomplishments?

Co-founding Microsoft in 1975 and leading it to become the world's largest software company; shipping MS-DOS and Windows, which put a personal computer on hundreds of millions of desks; co-founding the Bill & Melinda Gates Foundation in 2000, the largest private charitable foundation in history; donating more than $59.5 billion to global health, education, and poverty reduction; and backing breakthrough work in vaccines, polio eradication, and clean energy through TerraPower and Breakthrough Energy.

QUERY_02

What is Bill Gates best known for?

Two things: building Microsoft — co-writing Altair BASIC in 1975, licensing MS-DOS to IBM in 1981, and shipping Windows to the world — and then giving the resulting fortune away. Since 2000 he has been equally known as co-chair of the Gates Foundation, the driving force behind global vaccination campaigns, polio eradication efforts, and pandemic preparedness advocacy.

QUERY_03

What did Bill Gates actually create?

Gates is a programmer by training. He co-wrote the original Altair BASIC interpreter with Paul Allen in 1975 — Microsoft's first product. His larger creation was the company itself: under his leadership as CEO from 1975 to 2000, Microsoft shipped MS-DOS, Windows, Office, and Internet Explorer — the software stack that defined the personal computer era.

QUERY_04

What has Bill Gates done since leaving Microsoft?

He moved to full-time philanthropy in 2008 and left Microsoft's board in 2020. Since then the Gates Foundation has passed $77 billion in total grants; he co-founded TerraPower (advanced nuclear energy) and Breakthrough Energy (climate investment), published How to Avoid a Climate Disaster in 2021, funded mRNA vaccine research critical to the COVID-19 response, and committed 99% of his remaining wealth to the Foundation, which will spend down and close by 2045.

EOF · events_index.db · 919 records on file — every one documented, every one sourced

Bill Gates Accomplishments

Bill Gates Accomplishments

Gates marks Microsoft's 50th anniversary by releasing his original Altair BASIC source code

Microsoft Co-Founder Paul Allen Dies; Gates Pays Tribute to His Indispensable Friend

Before Microsoft, Gates Solved a Famous 'Pancake Sorting' Math Problem

Microsoft relocates from Albuquerque to the Seattle area

Microsoft's Famous 1978 Albuquerque Staff Photo Captures an 11-Person Startup

Microsoft Opens Its First Overseas Office, in Japan, With Kay Nishi

Microsoft Builds Out Its Languages Lineup With FORTRAN and COBOL

Microsoft BASIC Becomes the Lingua Franca of Early Home Computers

A 22-Year-Old Bill Gates Is Arrested in Albuquerque, Producing His Famous Mugshot

Bill Gates Brands Early PC Hobbyists Thieves in His 'Open Letter to Hobbyists'

Bill Gates publishes his 'Open Letter to Hobbyists' decrying software piracy

History's Most Famous 'Dropout' Actually Just Took a Leave From Harvard

Gates and Allen Bluff Their Way to Microsoft's First Product, Altair BASIC

Dropped out of Harvard University to co-found Microsoft

A Teenage Gates Helps Run the Northwest Power Grid in a Job for TRW

Gates Graduates Lakeside as a National Merit Scholar With a Near-Perfect SAT

Gates Takes Harvard's Math 55, the Hardest Undergraduate Math Class

At Harvard, Gates meets Steve Ballmer before dropping out

Gates's First Best Friend, Kent Evans, Dies in a Mountaineering Accident

Teenage Gates Tweaks Lakeside's Scheduling Program to Land in Classes With Girls

Teenage Gates's 'Lakeside Programmers Group' lands a payroll-software contract

Teenage Gates Is Banned From a Computer Center for Exploiting Its Bugs

The Questions Everyone Asks

What are Bill Gates's greatest accomplishments?

What is Bill Gates best known for?

What did Bill Gates actually create?

What has Bill Gates done since leaving Microsoft?

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How are the accomplishments in this archive verified?