Classic Maya collapse facts for kids
The Classic Maya transformation describes a time of big changes for many Maya cities in the southern lowlands. Between the 7th and 9th centuries CE, many of these cities faced challenges and were eventually left empty. Experts today often call this period a "transformation" or "rupture" instead of a full "collapse." This is because Maya civilization didn't completely disappear. Many cities in other areas, especially in the northern Yucatán Peninsula, continued to thrive, though with new styles and ways of writing.
The Classic Period of Maya history lasted from about 250 to 900 CE. The last part of this time, called the Terminal Classic, saw famous cities like Palenque, Copán, Tikal, and Calakmul decline. They stopped building large monuments and grand buildings. This period remains one of the greatest mysteries for archaeologists. Even though many cities changed, the Maya people and their culture continued for centuries, even until the Spanish arrived in 1697. Millions of Maya people still live in the Yucatán today.
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How Maya Cities Changed
The Maya people were excellent record keepers. They often carved dates onto the stone monuments they built. Around the year 500, they built about ten dated monuments each year. This number grew steadily, reaching about forty per year by 750. But after this peak, the number of new monuments quickly dropped. By 800, only ten were built each year, and by 900, almost none were being made.
Lists of kings also show this change. For example, Altar Q at Copán lists kings from 426 to 763. The last known king of that dynasty was Ukit Took. Soon after, the royal family's power in Copán likely ended. In Quirigua, a city near Copán, the last king, Jade Sky, began his rule around 795-800. Many other Maya kingdoms also faced similar endings around this time.
Scientists have also used a method called obsidian hydration dating to study how settlements grew and shrank in places like the Copán Valley. This method helped them estimate population changes. Between 400 and 450, the population was around 28,000 people. By 750-800, it started to decrease. By 900, it was down to 15,000, and by 1200, fewer than 1,000 people remained. Another clue is that after 830, very few new buildings were constructed in the central Maya area.
Why Did It Happen? Different Ideas
Archaeologists and historians have come up with more than 80 different ideas to explain the Classic Maya transformation. There isn't one single answer everyone agrees on. However, in recent years, the idea of long dry spells, or droughts, has become a leading explanation.
Outside Groups Arrive
One idea suggests that groups from outside the Maya region invaded the southern lowlands. Evidence from places like Seibal shows signs of influence from groups like the Toltec people from central Mexico. This theory suggests that an invasion in the 9th century could have caused a series of events that led to the decline of the Classic Maya.
However, most Maya experts don't believe that outside invasions were the main reason for the widespread changes. They argue that a military defeat alone cannot explain such a long and complex period of decline across many cities. Also, this theory doesn't fully explain why so many people left their cities or why new governments didn't form after any social unrest.
Changes in Trade Routes
Another idea is that the Maya's important trade networks broke down. These networks were especially connected to the powerful city of Teotihuacan in central Mexico. At first, experts thought Teotihuacan declined around 700-750 CE, which would have affected Maya trade.
However, we now know that Teotihuacan's main influence on the Maya was earlier, in the 4th and 5th centuries. Teotihuacan itself started to lose power and was possibly abandoned around 600-650 CE. This means the Maya continued to thrive for another century or more after Teotihuacan's decline. So, while changes in trade were important, they might have contributed to an earlier period of instability in the 6th century, rather than directly causing the later Classic Maya transformation.
The Role of Sickness
Some experts believe that widespread diseases played a part in the Maya decline. In tropical rainforest areas like the Maya lowlands, infectious diseases spread by tiny parasites are common. As the Maya developed their civilization, with more farming and larger settlements, they might have created environments where disease-carrying insects could thrive.
Certain illnesses, especially those causing severe stomach problems, could have been very harmful. These diseases could affect children early in life, making them weaker and more likely to get other sicknesses later on. This problem might have grown worse as the Maya relied more on certain crops. So, sickness could have been one reason, among others, for the challenges faced by the Classic Maya.
Long Dry Spells (Droughts)
The drought theory suggests that major climate change, in the form of very severe and long-lasting dry periods (called megadroughts), caused the Classic Maya transformation. Scientists who study ancient climates have found strong evidence of these droughts in the Yucatán Peninsula and Petén Basin during the Terminal Classic period.
These long dry spells likely made farming very difficult. Regular seasonal droughts would dry up surface water. Without enough rain, the thin tropical soils could also wash away without plants to hold them.
Experts like Thomas Gann and J. E. S. Thompson first suggested climate factors in 1931. In 1995, a study of lake sediments from Lake Chichancanab showed a severe drought in the 9th century CE, matching the time of the Maya changes. Richardson Gill's book, The Great Maya Droughts, brought together many studies to argue that a series of droughts was the main cause. He suggested that other factors, like warfare or social unrest, could also be explained by the effects of long droughts on Maya society.
A study published in Science in 2018 provided the most detailed measurements of these droughts. Researchers found that annual rainfall decreased by 41 to 54 percent during the period of the Maya civilization's changes. Some periods saw rainfall drop by as much as 70 percent. This information helps us understand how these dry conditions would have affected Maya farming, especially their main crop, maize.
However, some critics question if droughts affected all Maya regions equally. Archaeological findings show that while many southern lowland areas were abandoned, other regions, especially along the coast and in the northern Yucatán (like Chichen Itza, Uxmal, and Coba), continued to thrive or only faced minor problems. One idea is that central regions might have been more affected because their water sources were very deep, making droughts worse. Northern regions might have done better due to easier access to the coast and trade routes.
David Webster, another expert, pointed out that much of the early drought evidence came from the northern Yucatán, not the southern areas where Classic Maya civilization was strongest. He argued that if water sources dried up, cities would simply move. However, more recent studies from southern states have strengthened the idea that droughts happened across the entire Yucatán Peninsula.
Scientists are increasingly finding that climate changes have been major reasons for the rise and fall of civilizations around the world. The Maya lived in a challenging environment, relying on rainwater rather than steady water sources. Their amazing success for over two thousand years was due to their clever systems for storing and managing water. Even a small change in rainfall could have serious consequences for them.
Environmental Challenges
Some theories focus on how the Maya managed their land and resources. At first, people thought the Maya mainly used a simple "slash-and-burn" farming method. This led to ideas about soil becoming less fertile or land washing away.
However, more recent studies show that the Maya used many advanced farming techniques. These methods allowed them to feed large populations. They built canals, terraces, raised fields, and used systems to manage water. They also used natural materials to enrich the soil. These clever methods helped them farm successfully in the tropical rainforest for 1,500 years. But these techniques also depended heavily on a good supply of water, which supports the drought theory. Evidence of environmental problems includes cutting down too many trees, land washing away, and less variety of plants and animals.
Social and Political Changes
Anthropologist Joseph Tainter suggested that the Maya decline was linked to their societies becoming too complex. As Maya city-states competed and grew more complicated, the benefits they gained from this complexity started to decrease.
Psychologist Julian Jaynes proposed that the traditional ways of keeping order, through religion and the authority of kings, struggled to cope with the growing complexity of society. The old rituals and the king's power to ensure obedience might have become less effective as society changed.
See also
In Spanish: Colapso maya para niños
- Societal collapse, when a complex human society faces major challenges and changes.
- Bronze Age collapse, a similar period of widespread changes in the ancient Middle East.