AsOf

Rio Tinto Group · founded1873-03-29

valid: Two independent sources agree, or a primary source states it: the record asserts this claim, unless it is a post, is marked for review or carries a confidence below 0.5.asserted

What the statuses mean

Valid from
1873-03-29
Valid until
still holds
Published
no source on record carries a date
Recorded by AsOf
2026-11-12
Checked
2026-11-12 · its source page states the value and the date
Confidence
0.95

Sources

“on 29 March 1873, the Rio Tinto Company was registered in London with Matheson as Chairman.”— what the page says, read 2026-11-12

Cite this claim

Each form names the value, its as-of date (1873-03-29), the day you read it (2026-11-12), the claim's stable URL and id and its primary source. The URL never changes: a superseded claim stays at the same address.

Plain text
AsOf. "Rio Tinto Group founded: 1873-03-29", as of 1873-03-29. Claim clm_1C74869FC1C1, https://asof.is/claim/clm_1C74869FC1C1, accessed 2026-11-12. Source: https://www.riotinto.com/en/about/history.
APA
AsOf. (1873). Rio Tinto Group founded: 1873-03-29 (as of 1873-03-29) [Record clm_1C74869FC1C1]. Retrieved November 12, 2026, from https://asof.is/claim/clm_1C74869FC1C1 (source: https://www.riotinto.com/en/about/history)
BibTeX
@misc{asof_clm_1C74869FC1C1,
  author = {AsOf},
  title = {Rio Tinto Group founded: 1873-03-29},
  year = {1873},
  howpublished = {\url{https://asof.is/claim/clm_1C74869FC1C1}},
  note = {Claim clm\_1C74869FC1C1, as of 1873-03-29; source: https://www.riotinto.com/en/about/history},
  urldate = {2026-11-12}
}

On the record

/claim/clm_1C74869FC1C1.md/v1/claims/clm_1C74869FC1C1submit a correction