42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…
Tag: radiocarbon dating
Clovis made stone tools for only around 300 years
The Clovis, some of North America’s earliest inhabitants, only made stone tools during a brief 300-year period from 13,050 to 12,750 years ago, new research shows. Source: https://earthsky.org/human-world/clovis-stone-tools-300-years…