# Bill Gates founder roles entity: /record/bill-gates.md predicate: founder_of page: /record/bill-gates/founder_of as_of: 2026-11-08 cite: AsOf. "Bill Gates founder of: Microsoft", as of 1975-04-04. Claim clm_0CD4B2E9C5D9, https://asof.is/claim/clm_0CD4B2E9C5D9, accessed 2026-11-08. Source: https://www.history.com/this-day-in-history/april-4/microsoft-founded. As of November 8, 2026, the AsOf record says Bill Gates is a founder of Microsoft (since April 4, 1975), from 2 secondary sources (history.com and upi.com). 1 claim on Bill Gates's founder roles, 1 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted. ## Current founder roles What the record asserts on 2026-11-08. - [Bill Gates](/record/bill-gates.md) | founder_of | [Microsoft](/record/microsoft.md) | valid 1975-04-04 to present | conf 0.95 | valid | [clm_0CD4B2E9C5D9](/claim/clm_0CD4B2E9C5D9.md) sources: https://www.history.com/this-day-in-history/april-4/microsoft-founded, https://www.upi.com/Top_News/2026/04/04/On-This-Day-Gates-Allen-found-Microsoft/7291775266080/ ## Every dated value One claim per line, oldest first. Superseded claims stay visible. - [Bill Gates](/record/bill-gates.md) | founder_of | [Microsoft](/record/microsoft.md) | valid 1975-04-04 to present | conf 0.95 | valid | [clm_0CD4B2E9C5D9](/claim/clm_0CD4B2E9C5D9.md) sources: https://www.history.com/this-day-in-history/april-4/microsoft-founded, https://www.upi.com/Top_News/2026/04/04/On-This-Day-Gates-Allen-found-Microsoft/7291775266080/ ## Questions this record answers ### What is Bill Gates founder of? Microsoft, since April 4, 1975, as the record asserts on November 8, 2026, from 2 secondary sources (history.com and upi.com). ## Read on - This page: /record/bill-gates/founder_of (markdown: /record/bill-gates/founder_of.md) - Entity twin: /record/bill-gates.md ยท timeline: /timelines/bill-gates.md --- AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.