Classic Maya collapse

Long ago, many Maya people lived in big cities. They built tall stone buildings. They also carved many stone signs.

Then, things began to change. Many people left their homes. They moved to new lands. Some cities were left empty.

Why did this happen? It is a big mystery. Some think it was a long time with no rain. This made it hard to grow food.

Other people think sickness made them leave. Others think new groups came to their lands. The Maya people did not disappear, though.

Many Maya people still live in these lands today. They are still part of the world.

The Classic Maya lived in big cities in the southern lowlands. They built great stone buildings and carved many signs. Between the years 700 and 900, these cities began to fail. Many people left their homes and abandoned these places. This time is often called the Classic Maya collapse.

Some experts do not like that word. They say the Maya did not disappear. Instead, the people moved. Many cities in the north grew strong. New groups like the Chichén Itzá built big empires.

Why did the southern cities fail? It is a great mystery. Scientists have many ideas. One idea is that a megadrought happened. This was a very long time with no rain. It made it hard to grow food. Another idea is that sickness spread. Some think bad germs made many people ill. Some think new groups invaded the land. Others think trade routes broke down. Many of these ideas might work together. Even today, millions of Maya people live in the region.

The Classic Maya collapse is a famous mystery in archaeology. It describes a time when many big cities in the southern lowlands began to fail. Between the 7th and 9th centuries CE, these urban centers faced great instability. Famous cities like Tikal, Palenque, Copán, and Calakmul were eventually abandoned. Some scholars do not like the word "collapse." They say it was more of a transformation or a rupture. This is because the Maya people did not disappear. Instead, their power shifted from the southern lowlands to the Northern Yucatán. In the north, places like Chichén Itzá, Mayapán, and Uxmal actually flourished.

We can see this decline through many clues left in the ground. For a long time, the Maya built huge buildings and carved many stone monuments. These monuments often had important dates and names on them. In the year 514, there were about ten dated monuments made each year. By the year 750, that number grew to forty per year. However, the number of monuments began to drop very quickly after that. By the year 800, only ten were made each year. By the year 900, no new dated monuments were being built at all. This shows that the old way of life was changing.

Scientists use many different tools to study this time. One way is by looking at the number of people living in cities. Researchers used a method called obsidian hydration dating to study the Copán Valley. They found that the population reached a peak of 28,000 people between 400 and 450 CE. As time went on, the number of people began to fall. By the year 900, the population had dropped to 15,000 people. By the year 1200, fewer than 1,000 people lived there. This tells a clear story of people moving away.

There are more than 80 different ideas about why this happened. One major theory is that a "megadrought" occurred. This was a very long period with almost no rain. Studies of lake sediment in the Yucatán show a severe drought lasted from 800 to 1000 CE. This was the worst drought in 7,000 years. Without rain, it was hard to grow food or keep the soil healthy. Other ideas include the spread of diseases or the breaking of trade routes. Some people even think that groups from the Gulf Coast invaded the area.

Even though the old southern cities were left behind, Maya culture continued. The Maya people lived in different ways in the north and the highlands. They built new empires with different styles of art and buildings. This new way of life lasted for a long time. The last independent Maya city-state, Nojpetén, was not conquered until 1697. Today, millions of Maya people still live in the Yucatán peninsula. Their history is a long story of change and survival.

The Classic Maya collapse describes the destabilization of Maya civilization in the southern lowlands. This process occurred between the 7th and 9th centuries CE. During this time, many major city-states began to decline and were eventually abandoned. Famous urban centers included Palenque, Copán, Tikal, and Calakmul. Many modern scholars prefer different terms to describe this period. They often use the words "rupture" or "transformation" instead of "collapse." This is because Maya civilization did not end entirely. Instead, the center of power shifted away from the southern lowlands. The Northern Yucatán region actually prospered during the following years.

Archaeologists can track this decline through specific physical evidence. One major sign was the cessation of monumental inscriptions. This means the Maya stopped carving important dates and names into stone. They also stopped large-scale architectural construction in their primary cities. We can see this change in the number of dated monuments built each year. In 514 CE, about ten dated monuments were made annually. This number rose to twenty by 672 CE and forty by 750 CE. However, the numbers fell quickly after that peak. By 800 CE, only ten monuments were made each year. By 900 CE, the number of dated monuments dropped to zero.

Another way to measure the decline is by looking at human populations. Researchers used a technique called obsidian hydration dating to study settlement growth. This method helps estimate how many people lived in specific areas. In the Copán Valley, the population reached a peak of 28,000 people between 400 and 450 CE. Between 750 and 800 CE, the population began to decline steadily. By 900 CE, only 15,000 people remained in the valley. By 1200 CE, the population had fallen to less than 1,000 people. These numbers show a massive movement of people away from the southern cities.

Historians have identified more than 80 different theories to explain these events. One theory suggests that foreign invasions played a role. Some evidence shows a Toltec intrusion into Seibal in the Peten region. This may have involved a non-Maya group from the Gulf Coast lowlands. Some believe this invasion was influenced by the Toltec people of central Mexico. However, many experts doubt that invasion was the primary cause. They argue that military defeats rarely cause such a long and complex process of abandonment. They also note that the inhabitants' final destinations remain unknown.

Another possibility involves the collapse of intricate trade systems. These networks connected the Maya to the central Mexican city of Teotihuacán. Previously, scholars thought Teotihuacán fell between 700 and 750 CE. This would have forced a restructuring of economic relations throughout Mesoamerica. However, newer research has changed our understanding of this timeline. It is now believed that Teotihuacán lost its power between 600 and 650 CE. Because of this, the Maya likely lived and prospered for another century. The decline of Teotihuacán may have contributed to a "hiatus" rather than causing an immediate collapse.

Disease is also considered a possible factor in the population decline. Tropical rainforest regions are common places for parasites and infectious diseases. Some experts suggest the Maya encountered infections like American trypanosomiasis or Ascaris. They also believe that growing large settlements created a "disturbed environment." This environment allowed pathogen-carrying insects to thrive. Certain illnesses that cause acute diarrheal disease could have been especially devastating. These diseases often strike children at an early age. This can harm their nutritional health and make them more vulnerable to other sicknesses.

The most prominent theory today is the drought theory. Paleoclimatologists have found evidence of severe, prolonged droughts in the Yucatán Peninsula. These events are sometimes called "megadroughts." During the Terminal Classic period, these droughts likely reduced agricultural fertility. Without regular seasonal rain, surface waters dried up. The lack of vegetation also caused thin tropical soils to erode. Studies of lake sediment in Lake Chichancanab show an intense drought in the 9th century. Some research suggests a severe 200-year drought occurred from 800 to 1000 CE. This was the most severe drought in 7,000 years and coincided with the Maya collapse.

Despite these massive changes, Maya culture continued in new forms. In the Post-Classic Period, the state of Chichén Itzá built a large empire. This empire briefly united much of the Maya region. Other centers like Mayapán and Uxmal also flourished in the north. In the highlands, the Kʼicheʼ and Kaqchikel Maya states grew strong. The Maya civilization remained independent in various places for many centuries. The last independent city-state, Nojpetén, was not conquered until 1697. Today, millions of Maya people still live in the Yucatán peninsula.