Throughout the history of mankind, there have been a huge number of peoples and entire civilizations on the planet that have not survived to this day. Historians and archaeologists are actively engaged in the study of each of them. But if there is a lot of information about some, and you can find out how they appeared and disappeared from the forefront of history, then the fate of others continues to be vague for researchers. Your attention is the "nine" civilizations, the mystery of the disappearance of which remains unsolved.
1. Olmecs
The Olmecs lived in southern and central Mexico around the 1400s. BC: their remains were found on the territory of modern San Lorenzo, Potrero Nuevo and Tenochtitlan. Representatives of this culture left behind pyramids, palaces, sculptures, and even burial mounds. The level of their processing indicates that this civilization is now referred to by scientists as the most ancient and developed civilization among all known American peoples. But nothing is known about the reasons for the disappearance of the Olmec people, which occurred in the 400s BC. Several theories are put forward: climate change, seismic and volcanic activity, or even opinions are put forward about the abduction of civilization by unknown creatures.
2. Nabataean kingdom
The territory of the Nabataean kingdom is the region where the current Israel, Jordan, Syria and Saudi Arabia are located. The capital of the state has also been preserved - the city of Petra, which was literally carved out of the rock. It is known that the Nabataeans were mainly engaged in trade in precious stones and metals, natural silk, ivory, which was facilitated by a favorable geographical position. In addition, unlike other ancient civilizations, there was no slavery in the Nabataean kingdom. However, a successful and seemingly advanced civilization around the 4th century BC. suddenly, but at the same time in a very organized way, leaves a perfectly settled place. Based on these data, historians made only one conclusion regarding the disappearance of the Nabataeans: the trade routes changed, and the territory turned out to be unprofitable for living.
3. Aksumite kingdom
The Aksumite kingdom was located on the territory of modern Ethiopia, and dates back to the 1st century AD, and the capital was called Aksum and was a trading city. Ivory and gold were the main items of sale, and India and Ancient Rome often became buyers. The success of the prosperity of this nation is indicated, in particular, by the presence of its own monetary settlement system. Another well-known cultural monument of the Aksumite kingdom is the steles that have survived to this day. The disappearance of civilization is still being argued to this day: assumptions are often made about the possible conquest of the state Jewish queen Judith, natural disasters or climate change, or decline and famine due to trade isolation.
4. Mycenae
A fairly well-known ancient Greek civilization that has existed since about the 1600s. BC. The Mycenaean culture was distinguished by a strong military organization, which, in particular, had its own navy. In peaceful years, the Mycenaeans were engaged in trade, and the products of artisans were sold, since the territory of their settlement was poor in natural resources. But about where the representatives of this civilization have gone, discussions have not subsided for decades. The most popular versions are natural disasters, military decline, class conflict.
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5. Khmer Empire
On the territory of modern Cambodia, as well as Vietnam, Thailand and Laos, one can find the majestic remains of the once strongest state of Southeast Asia of the 9th century. Among historians, it is known as Kambujadesh, and is distinguished by the brightness and richness of culture. However, such a strong empire lasted only 500 years, after which it is not clear for what reason it ceased to exist. Historians and archaeologists consider the most likely version of the disappearance of the Khmer Empire to be economic decline due to constant wars.
6. Trypillia culture
On the territory of Eastern Europe, about five thousand years ago, there was the richest agricultural civilization - the Trypillia culture. But she left enough riddles behind herself: for example, it is completely incomprehensible why the Trypillians every 50-70 years they completely burned their village in order to build on the same or another place new. The reasons why they disappeared from the historical map are also completely incomprehensible. The most popular versions in this regard are climate change, the conquest of the Trypillia culture by another, or peaceful assimilation with neighboring tribes as a result of a general decline.
Source: https://novate.ru/blogs/130322/62368/