# clm_59DB9FD61BB7

subject: Pfizer (/record/pfizer.md)  
predicate: founded  
value: 1849  
valid_from: 1849-01-01  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-11  
confidence: 0.60  
status: unverified  
assertable: false (unverified: Unverified: one source that is not primary, or a primary source below confidence 0.7. Asserted once a primary source or a second independent domain confirms it.)  
superseded_by: null  
last_updated: 2026-11-11  
cite: AsOf. "Pfizer founded: 1849", as of 1849-01-01. Claim clm_59DB9FD61BB7, https://asof.is/claim/clm_59DB9FD61BB7, accessed 2026-11-12. Source: https://www.ebsco.com/research-starters/business-and-management/pfizer/.  
checked: 2026-11-11 · its source page states the value and the date  

> Founded in 1849 by German immigrants Charles Pfizer and Charles Erhart in Brooklyn, New York

What https://www.ebsco.com/research-starters/business-and-management/pfizer/ says, word for word.

## Sources

- https://www.ebsco.com/research-starters/business-and-management/pfizer/ (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.