ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins61% CONFIDENCEOverall confidence: 61%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 from 50% to 74% confidence
Given as a target, not a fixed date, per the pin description: "…would be the tallest dam in the world. Estimated date.…"At a planned 335 metres, Tajikistan's Rogun would be the tallest dam in the world. Estimated date.
$3.9B
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