Around 12,800 years ago, Earth's climate abruptly plunged back into glacial conditions after millennia of warming — an event known as the Younger Dryas. In
Choose your own path through ancient archaeological mysteries with our interactive story experiences. Each story presents multiple perspectives — mainstream, alternative, and speculative — letting you explore the evidence and reach your own conclusions about ancient civilizations. Navigate branching narratives that weave together archaeological findings, geological data, and competing theories into engaging investigative journeys. Our stories cover topics ranging from the water erosion debate around the Great Sphinx to underwater discoveries near Bimini and the enigmatic engineering of South American megalithic walls.
Around 12,800 years ago, Earth's climate abruptly plunged back into glacial conditions after millennia of warming — an event known as the Younger Dryas. In 2007, a team of scientists proposed that the trigger was a cometary impact or airburst over the Laurentide Ice Sheet. The evidence has grown to include a layer of platinum, nanodiamonds, magnetic microspherules, and meltglass found at over 50 sites across four continents, all dating to the same narrow time window. The Greenland ice cores record a temperature drop of 10 degrees Celsius in a single decade. Megafauna went extinct across North America. The Clovis culture vanished. Sea levels eventually rose over 120 meters as the destabilized ice sheets collapsed. Critics argue that no impact crater has been definitively identified, and that the boundary layer materials can be produced by other processes. Proponents counter that an airburst over ice would leave no crater. This story examines the full body of evidence, the strongest objections, and what the Younger Dryas hypothesis implies for human civilization at the end of the Ice Age.
This interactive archaeological story lets you choose your path through competing perspectives on ancient mysteries. Navigate branching narratives that present mainstream archaeological interpretations alongside alternative hypotheses, examining the evidence from multiple angles. Each choice leads to deeper exploration of the archaeological record, geological data, and scholarly debate surrounding this ancient enigma.