CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 4 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
Italy's Civil Protection Department, Wikipedia[2] and History Daily[3] all give the night of 9 October 1963 (Wikipedia: 22:39 CET).On the night of 9 October 1963 a landslide from Monte Toc into the Vajont reservoir sent a wave over the 262 m dam, destroying Longarone and nearby villages and killing roughly 2,000 people.
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