{"entity":"stack-overflow","id":"ent_stack-overflow","name":"Stack Overflow","predicate":"founded","label":"founding date","page":"https://asof.is/record/stack-overflow/founded","as_of":"2026-11-03","summary":"As of November 3, 2026, Stack Overflow's founding date on the AsOf record is September 15, 2008, dated September 15, 2008, from 2 secondary sources (blog.codinghorror.com and joelonsoftware.com). The record holds 1 claim on Stack Overflow's founding date, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_376D9F72CCD4"],"latest_period":null,"claims":[{"id":"clm_376D9F72CCD4","value":"2008-09-15","valid_from":"2008-09-15","valid_to":null,"published":"2008-09-15","recorded":"2026-10-27","confidence":0.85,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://blog.codinghorror.com/stack-overflow-none-of-us-is-as-dumb-as-all-of-us/","tier":"secondary","publisher":"blog.codinghorror.com","published_at":null},{"url":"http://www.joelonsoftware.com/items/2008/09/15.html","tier":"secondary","publisher":null,"published_at":"2008-09-15T00:00:00+00:00"},{"url":"https://www.wikidata.org/wiki/Q549037","tier":"secondary","publisher":"Wikidata","published_at":null}],"evidence":{"by":"page-read","on":"2026-10-30","quote":"September 15, 2008 April 19, 2018 by Joel Spolsky Stack Overflow Launches","url":"http://www.joelonsoftware.com/items/2008/09/15.html"}}],"replaced":[],"faq":[{"question":"What is Stack Overflow's current founding date?","answer":"September 15, 2008, dated September 15, 2008, from 2 secondary sources (blog.codinghorror.com and joelonsoftware.com). The record asserts this claim as of November 3, 2026 (status valid, confidence 0.85)."}],"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}