ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%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
Britannica[2] and multiple Egyptology sources place the Great Pyramid’s completion at approximately 2560 BCE, with no exact date recorded.Standing 481 feet tall and the world's tallest human-made structure for more than 3,700 years, the Great Pyramid of Giza was built as Pharaoh Khufu’s tomb from an estimated 2.3 million stone blocks.
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