Historical MapsLanguages

The Rise and Fall of Celtic Languages

Welsh, Irish, and Scottish Gaelic occupy a narrow strip of the Atlantic coast today. Most people think of them as small, peripheral languages that have always been there at the edge of Europe, hanging on by a thread. But two thousand years ago Celtic was one of the most geographically widespread language groups in the world, running from Portugal to the Black Sea and beyond.

Read more: The Rise and Fall of Celtic Languages
PaleontologyWater Bodies

Lake Paratethys: The Largest Lake That Ever Existed on Earth

The Caspian Sea is the largest lake on Earth at 386,000 km² (149,000 mi²). Lake Paratethys, which existed twelve million years ago between the Alps and Kazakhstan, covered 2.8 million km², more than seven times that size. It held more water than every modern lake combined, had its own miniature whale species, and eventually broke apart into the Caspian, the Black Sea, and the Aral Sea.

Read more: Lake Paratethys: The Largest Lake That Ever Existed on Earth
DemographyVivid maps

From 4.5 Million to 8 Billion: How Earth’s Population Changed Over 12,000 Years

Eight billion people share the planet today, but that number has never moved in a straight line. Plagues erased tens of millions within a few years. Colonization wiped out nearly 90% of the Americas in a single century. The Industrial Revolution nearly doubled global numbers in just 100 years. A series of population cartograms maps all of this from 10,000 BCE to 2023.

Read more: From 4.5 Million to 8 Billion: How Earth’s Population Changed Over 12,000 Years