Browse Curiosmos

Ancient Civilizations

Discover the world’s most mysterious ancient civilizations, from lost cities and megalithic structures to forgotten knowledge and unsolved archaeological puzzles.

Interpretive illustration of the Neo-Assyrian heartland shifting from wet fields to drought beside an Assyrian relief.

Drought May Have Strained Assyria Before Nineveh Fell

A cave record from northern Iraq suggests that drought narrowed the Neo-Assyrian Empire’s food supply before its capital fell in 612 BC. It adds climate context to a collapse already shaped by war and political conflict.

Interpretive illustration of an archaeological excavation beside the Nile at Jebel Sahaba with stone projectile points

What Happened at Jebel Sahaba 13,000 Years Ago?

Jebel Sahaba, also known as Site 117, was excavated in the 1960s in what is now northern Sudan. The cemetery contained the remains of 61 people, including children. Many had…

Interpretive illustration of a Rongorongo wooden tablet with carved glyphs on Rapa Nui

Why Has Rongorongo Never Been Deciphered?

Why has the Rongorongo script never been deciphered? A small Rapa Nui corpus, lost context and new dating explain what researchers know—and what they cannot read.

Stonehenge standing stones viewed from the northeast

What Were Poland’s 7,000-Year-Old Rondels For?

Archaeologists have found roughly twenty Neolithic rondels in Poland. Their circular ditches and palisades reveal organised communities, but their exact purpose remains open to evidence.

Archaeologist examining a small bone sample for ancient DNA research

Why Did the Last Woolly Mammoths Survive on Wrangel Island?

The last woolly mammoths survived on Wrangel Island thousands of years after the mainland herds vanished. Ancient DNA reveals a severe bottleneck, a long recovery and a final extinction that remains unresolved.

Illustration of ancient observers testing whether Earth was round with a shadow stick, globe and lunar eclipse

How Did Ancient Observers Know Earth Was Round?

How did ancient observers know Earth was round? Greek, Indian and Islamic scholars used eclipses, shadows and the changing sky to test Earth’s shape long before Columbus.