An event with no surviving witnesses or documents can hardly be dated at all.

Popularity Index: 1 Updated at 2026-10-17 15:31 UTC

Sites

Related Topics

Most dates in a history textbook are conventions — the event itself was a slow process. Timeline collections of historical events disagree about dates more than you would expect. The Permian-Triassic clay layer that marks 96 percent of marine species gone Why the Quaternary was redefined and the Holocene start moved to 11700 years ago The iridium anomaly at the K-Pg boundary: how the Alvarez team found an asteroid The Anthropocene was voted down in 2024: why geologists refused to end the Holocene Carbon-14 runs out at about 50000 years and deeper time needs other isotopes Egyptian king lists and the Sothic cycle dated pharaohs before radiocarbon existed Geological periods are defined by rock layers and their absolute dates are a separate layer of work Radiocarbon dating is useless without the calibration curve and the curve rewrote Egyptian chronology

Hot Categories

Featured Categories