# Marc Andreessen Timeline Biographical chronology of [[Marc Andreessen]] — the look-back spine. Distinct from [[Marc Andreessen Calendar]] (look-ahead) and [[Marc Andreessen Events]] (discrete-page index). > Dates as established in the vault and the widely-reported public record. ## Netscape & the first fortune (1993–2009) | Year | Event | |---|---| | 1993 | Co-creates the Mosaic web browser (NCSA) | | 1994 | Co-founds Netscape | | 1999 | Co-founds Loudcloud → Opsware with [[Ben Horowitz]] | | 2007 | Opsware sold to HP ($1.6B) | ## Building a16z (2009–2022) | Year | Event | |---|---| | 2009 | Co-founds [[Andreessen Horowitz]] with [[Ben Horowitz]] | | 2020 | Publishes "It's Time to Build" (pandemic-era manifesto) | | 2020–22 | Opposes an Atherton multi-family zoning change — the exodus "which Californians" hypocrisy | | 2022 | a16z crypto fund scales to $4.5B | ## The political turn (2023–2026) | Date | Event | |---|---| | May 2023 | [[American Dynamism]] practice: $500M for defense/aerospace | | Oct 2023 | Publishes the [[Techno-Optimist Manifesto]] (incl. the "enemies list") — see [[Marc Andreessen Quotes]] | | Jul 2024 | Endorses Trump with [[Ben Horowitz]], citing crypto + AI | | 2024–25 | $33.5M to [[Fairshake]] + crypto PACs; $3M to [[MAGA Inc.]] | | 2025 | Becomes a [[DOGE Ecosystem]] "unpaid intern" / talent recruiter; "significant hours at [[Mar-a-Lago]]" | | Jan 2026 | a16z raises **$15B** — the firm's largest fund; [[American Dynamism]] to $1.176B | ## See Also - [[Marc Andreessen]] — canonical biography - [[Marc Andreessen Calendar]] · [[Marc Andreessen Events]] - [[Andreessen Horowitz]] · [[Techno-Optimist Manifesto]] - [[Marc Andreessen Dossier]]