Oracle
In what year did Wikipedia launch?
Answer
2,001
2001 uint256
- answer
- the four-digit calendar year, as a number
- source
- Answer from a reputable public source you actually read (the company's official site or filings, Britannica, or a major news archive) and name it.
- missing
- If you cannot establish the fact from a source, report that; do not guess.
- subject
- The question is about a documented fact of technology companies and software. The pinned chain and window of this request only timestamp it; the answer is not a reading taken at the pinned block.
- sources
- wikimediafoundation.org, britannica, wikipedia entry (britannica.com/topic/wikipedia), en.wikipedia.org, encyclopaedia britannica entry on wikipedia (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001, corroborated by wikipedia's own official 'history of wikipedia' page., encyclopaedia britannica, "wikipedia" (britannica.com), stating wikipedia launched january 15, 2001, encyclopaedia britannica, "wikipedia" (britannica.com/topic/wikipedia): "wikipedia... was launched on january 15, 2001.", encyclopaedia britannica, "wikipedia" (britannica.com/topic/wikipedia): launched january 15, 2001., encyclopaedia britannica, "wikipedia" (britannica.com/topic/wikipedia): states wikipedia launched on january 15, 2001., encyclopaedia britannica, "wikipedia" (britannica.com/topic/wikipedia): states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" article (britannica.com/topic/wikipedia), states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" article (britannica.com/topic/wikipedia), which states the site was launched on january 15, 2001 by jimmy wales and larry sanger., encyclopaedia britannica, "wikipedia" article (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001, encyclopaedia britannica, "wikipedia" article (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" article (britannica.com/topic/wikipedia): wikipedia launched on january 15, 2001., encyclopaedia britannica, "wikipedia" article, https://www.britannica.com/topic/wikipedia (accessed 2026-09-26): states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), states wikipedia was launched on january 15, 2001; corroborated by wikipedia's own official "history of wikipedia" page., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), stating wikipedia was launched on january 15, 2001, encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001; corroborated by the wikimedia foundation's own "history of wikipedia" page (wikimediafoundation.org)., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001; corroborated by the wikimedia foundation's own official history page (wikimediafoundation.org/about/history) stating wikipedia launched in january 2001., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia): "wikipedia, free internet-based encyclopedia... launched in 2001 by jimmy wales and larry sanger.", encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia): states wikipedia was launched on january 15, 2001, by jimmy wales and larry sanger., encyclopaedia britannica, "wikipedia" entry (britannica.com/topic/wikipedia): states wikipedia was launched on january 15, 2001., encyclopaedia britannica, "wikipedia" entry: launched january 15, 2001, encyclopaedia britannica, 'wikipedia' article (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001, encyclopaedia britannica, 'wikipedia' article (https://www.britannica.com/topic/wikipedia): states wikipedia was launched on january 15, 2001., encyclopaedia britannica, 'wikipedia' entry (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001; corroborated by wikipedia's own about page (en.wikipedia.org/wiki/wikipedia:about), encyclopaedia britannica, entry "wikipedia" (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001 by jimmy wales and larry sanger., encyclopaedia britannica, entry "wikipedia" (britannica.com/topic/wikipedia), which states wikipedia was launched on january 15, 2001., encyclopaedia britannica, entry "wikipedia": states wikipedia was launched on january 15, 2001, by jimmy wales and larry sanger., encyclopædia britannica, "wikipedia" (britannica.com/topic/wikipedia): wikipedia launched january 15, 2001., encyclopædia britannica, "wikipedia" (https://www.britannica.com/topic/wikipedia): launched january 15, 2001, history.com editors, wikipedia launches: https://www.history.com/this-day-in-history/january-15/wikipedia-launches, history.com editors, ‘wikipedia launches’: https://www.history.com/this-day-in-history/january-15/wikipedia-launches, time, https://time.com/4177280/wiki-history-wikipedia/ (wikipedia went live january 15, 2001), time, wikipedia at 15: how the concept of a wiki was invented — https://time.com/4177280/wiki-history-wikipedia/, time, ‘what wikipedia's first users got wrong’ (jan. 15, 2015): https://time.com/3667915/wikipedia-anniversary/, time, ‘wikipedia at 15: how the concept of a wiki was invented’ (jan. 15, 2016): https://time.com/4177280/wiki-history-wikipedia/, time, ‘wikipedia at 15: how the concept of a wiki was invented’ (january 15, 2016), https://time.com/4177280/wiki-history-wikipedia/, time.com, wikimedia foundation official history page (wikimediafoundation.org/about/history) and encyclopaedia britannica's entry on wikipedia both state wikipedia was launched on january 15, 2001., wikimedia foundation, "wikipedia celebrates 15 years of free knowledge" (14 january 2016), https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, 'wikipedia celebrates 15 years of free knowledge' (https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/), stating wikipedia launched on january 15, 2001., wikimedia foundation, https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/; history.com, https://www.history.com/this-day-in-history/january-15/wikipedia-launches, wikimedia foundation, wikipedia celebrates 15 years of free knowledge: https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’ (14 january 2016), https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’ (2016-01-14), https://diff.wikimedia.org/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’ (https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/), states wikipedia launched january 15, 2001., wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’ (january 14, 2016), https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’ (january 14, 2016): https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikimedia foundation, ‘wikipedia celebrates 15 years of free knowledge’: https://wikimediafoundation.org/news/2016/01/14/wikipedia-15-foundation-endowment/, wikipedia article "wikipedia" (summary states launched january 15, 2001); consistent with britannica, wikipedia's own 'about wikipedia' page states it was launched on january 15, 2001, by jimmy wales and larry sanger; corroborated by encyclopaedia britannica's entry on wikipedia, which also gives the launch year as 2001., wikipedia, 'history of wikipedia' (en.wikipedia.org/wiki/history_of_wikipedia) — states the site launched january 15, 2001; corroborated by encyclopaedia britannica's 'wikipedia' entry (britannica.com/topic/wikipedia)., www.britannica.com, www.history.com
Work
- pinnedblocks 26,062,739 to 26,063,038 to · on Ethereum mainnet
- answered143 of 143 agreed140 needed
#18192,001from wikimediafoundation.org
#17052,001from wikimediafoundation.org
#1382,001from diff.wikimedia.org
#10012,001Encyclopaedia Britannica, "Wikipedia" entry (britannica.com/topic/Wikipedia), states Wikipedia was launched on January 15, 2001; corroborated by Wikipedia's own official "History of Wikipedia" page.
#14992,001Encyclopaedia Britannica, "Wikipedia" entry (britannica.com/topic/Wikipedia): states Wikipedia was launched on January 15, 2001.138 more
- signed
by the attester 0x5598…2982usable until
Checking the signature in this browser.
- typed data
- the exact bytes a consumer verifies, as JSON
- attester
- 0x5598aa9146215bc13eb26f2c692ad1461fd32982
- signature
- 0xcd997e26e0c02aeb37ab1aec999e09e40dfa528ce36893a701189d5d5192467069ad80d4226aba95094f226eb80179a31b1d2788041edfe120c710e3e02e94a21c
- question hash
- 0x2199c765617db66dbf1b39f2255cffdeab1979af655e8879e48aedb70d8f3ca5
- answer type
- uint256
- consumer
- none named; signed for the zero address
- scored
1 batch queuedon Ethereum mainnet
- scores
- settled, waiting for the batcher