# clm_B2059DF137FB

subject: Mark Zuckerberg (/record/mark-zuckerberg.md)  
predicate: founder_of  
value: [Facebook](/record/facebook.md)  
valid_from: undated  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-07  
confidence: 0.80  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-07  
cite: AsOf. "Mark Zuckerberg founder of: Facebook", undated. Claim clm_B2059DF137FB, https://asof.is/claim/clm_B2059DF137FB, accessed 2026-11-08. Source: https://www.wikidata.org/wiki/Q355.  
checked: 2026-11-01 · mirrors a checked claim on the organization's record  

## Sources

- https://www.wikidata.org/wiki/Q355 (secondary, Wikidata)
- https://www.meta.com/about/leadership/mark-zuckerberg/ (secondary, meta.com)
- https://www.ebsco.com/research-starters/history/meta/ (secondary, ebsco.com)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.