Their lives are etched in stone, shrouded in mystery. Who are they, and how did they live? But most intriguingly, why did they decline or seemingly disappear? Studying ancient civilizations is helping scientists and researchers determine what our ancestors’ lives were like. If we unlock the past, we can unlock success in the future. Here are 10 ancient civilizations that mysteriously disappeared without a trace. Please stick close to the tour guide!
The Maya
Despite their seemingly primitive architectural structures, the Maya were technologically more advanced than early Europeans realized. They developed a writing system using hieroglyphs and employed complex mathematics to track celestial bodies, resulting in the creation of an accurate calendar. However, after the ancient civilization flourished between 250 and 900 CE, it declined for reasons that remain unknown. Some experts suggest war and drought as possible factors, but there hasn’t been conclusive evidence.
The Indus Valley Civilization
With its clay houses laid out in a grid system, the Indus Valley Civilization was characterized by skilled architects and engineers. They were a very peaceful society with limited evidence of weapons or warfare; instead, they focused their energy on the lucrative trade networks to which they were connected. As prosperous as they were, experts don’t know what caused their decline. Possibilities include climate change and the drying up of a major water source.
The Anasazi
We call the Native Americans who lived in the Four Corners region of the U.S. the Anasazi (a term which in Navajo means “ancient ones”). The intricate pueblos left in the rock tell us they were expert builders. They were innovative in agriculture, creating irrigation systems and practicing a method known as dry farming. They also excelled at pottery and basketry. But one day, around 1300, the Anasazi mysteriously abandoned their settlement. Drought and conflict seem to be the main theories.
Easter Island’s Inhabitants (Rapa Nui)
While the indigenous people living on Easter Island didn’t entirely disappear, one popular theory suggests that the Rapa Nui experienced a significant population decline even before the arrival of Europeans carrying diseases. One prevailing idea was that they overexploited the land’s resources, leading to famine, war, and societal collapse. Just as we don’t know how they transported the boulders that make the island’s iconic attraction, we also don’t know how their population initially declined.
The Mississippians (Cahokia)
Cahokia was once home to the largest Mississippian settlement, with a peak population estimated to be between 10,000 and 20,000 people. It was one of the most impressive urban centers in prehistoric America. The city was known for its ceremonial and residential mounds, but in 1350 CE, the Mississippians abandoned the city—some experts believe overpopulation, environmental change, and social and political instability were possible causes.
The Khmer Empire
Encompassing parts of present-day Cambodia, Thailand, Laos, and Vietnam, the Khmer Empire was a powerful Southeast Asian civilization that created the Angkor Wat temple. The bas-relief sculptures featured throughout were carved with impressive detail, depicting Hindu mythology and Khmer history. Societal shifts, political unrest, and economic and environmental challenges likely contributed to the collapse of the civilization.
The Olmecs
The Olmecs were an early Mesoamerican civilization that developed a sophisticated society, characterized by its art and religion. Giant, bulbous heads were carved out of stone, possibly representing rulers. However, after they flourished, society declined, believed to be caused by environmental changes, resource mismanagement, overpopulation, or political disputes and warfare. Even so, they influenced the Maya and Aztecs who came afterward.
Çatalhöyük
The residents of Çatalhöyük, a large Neolithic settlement in Turkey, had an unusual architectural style. Instead of roads, they used letters to travel from building to building. Like some of the other civilizations we’ve shared, the society declined and the site was abandoned. Experts suspect the usual causes—famine, warfare, or environmental shifts.
The Phrygians
The Phrygians rocked style in the 7th and 8th centuries BC. Known for the Phrygian cap, which represented freedom, fate had other plans. When they encountered numerous attackers, their independent kingdom was absorbed by other ruling powers. The Phrygian language is believed to have died out in the 5th or 6th century BC. Elements of the culture continued to influence subsequent empires in the region. Unfortunately, the odd hat trend was abandoned.
Göbekli Tepe
Believed to have been built by hunters and gatherers, Göbekli Tepe is the oldest known temple, predating Stonehenge and the Great Pyramids of Giza. The prehistoric site features giant T-shaped pillars that date back to as early as 10,000 BCE. But similar to other ancient civilizations, the site lost its prevalence. Some experts blame the transition to agriculture. Whatever the case, we still don’t know for sure. Researchers will continue unearthing hidden mysteries in some of Earth’s earliest civilizations.
