CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins90% CONFIDENCEOverall confidence: 90%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
Wikipedia[1] (infobox and text) and the Travel China Guide project schedule both give 14 December 1994 for the start of construction/commencement ceremony.China held the grand commencement ceremony for the Three Gorges Project at Sandouping on the Yangtze on 14 December 1994, starting what became the world's largest hydropower plant.
1.00
