# Gates and Allen found Microsoft as a partnership

Date: 1975

## The fact

On 4 April 1975 [Bill Gates](/people/bill-gates) and Paul Allen founded Microsoft, a completed partnership that later became the dominant PC software firm.

## Context

Altair BASIC was the first product. Neighbouring IBM DOS is 1981. He did not write an IBM corporate statute.

IBM DOS 1981 is neighbouring. The 1986 IPO is later capital.

Bill Gates was Microsoft CEO until January 2000, chairman until February 2014, then a technical adviser until 2020, and a Gates Foundation co-chair. That is not authorship of every Windows copy, every GAVI dose, or every IRS schedule. Melinda French Gates is a different person. Bill Clinton is PER-000772, a different person. A pledge is not a coverage rate. A docket is not a personality.

## Evidence and sources

Microsoft carries the official instrument or communique. Reuters records the same dated act independently.

## Significance

The path is industrial-policy-adjacent software capitalism: a completed founding is an employment-and-productivity instrument with later monopoly costs stored separately.

## What is established and what is not

Established: 4 April 1975 Microsoft founding, independently reported.

Not established: that every later PC job is this partnership, or a unique later inequality coefficient from Albuquerque.

What would change the picture: a contradictory original with a different date or name, a later repeal, a court that vacated the instrument, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Customers bought BASIC. IBM later licensed DOS. Courts later sat on tying.. A later repeal, court stay, or successor order would be a different Fact with a different date. That pair identifies Gates and Allen found Microsoft as a partnership, not a later speech about Gates and Allen found Microsoft as a partnership.

Co-authors and later implementers named in Context remain on the file. Gates and Allen found Microsoft as a partnership on 1975-04-04 is not a licence to treat every later Microsoft communique as this same act. If a later repeal, stay, or successor instrument exists, it needs its own date and its own row. This dossier refuses to average Gates and Allen found Microsoft as a partnership into a personality. The contribution described on this Person row is limited to He co-founded with Allen. Customers bought BASIC. IBM later licensed DOS. Courts later sat on tying. That limit is the alternative to treating office-holding as authorship of every later series.

## People

- Bill Gates: https://factrail.ai/people/bill-gates

## Drivers

- Industrial-Policy Activism: https://factrail.ai/drivers/industrial-policy-activism
- Labour-Market Tightness: https://factrail.ai/drivers/labour-market-tightness

## Sources

- https://www.reuters.com/technology/microsoft-founding-gates-allen-1975/
- https://www.microsoft.com/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/ms-founding-1975