Polymarket — Founded Date: Jan 2020

NoteThe source confirms Polymarket's founding year as 2020, but only at year-level precision. The claim specifies 2020-01 (January 2020), which is a month-level precision. The source states 'inception: 2020' with 1 reference, confirming the year but not the specific month. Since the claim is more precise than what the source provides, this is 'partial' — the year is confirmed but the month cannot be verified from this source.