Throughout the history length once existed in the underground world for many different reasons. This happens in a short period of time. Experts find an underground city dating back over 1,000 years old. In the book "Under the ground: History of men under the world underneath our feet", author Will Hunt comes about the world Under the ground for a long time. According to the author Will Hunt, for many different reasons why people decide to move the house on the ground to the ground to survive
. They live underground for a short period of time. In this number there is no material to build houses such as wood, bricks, people have dug deep into the ground to build a special house. The climate is harsh, the weather is too hot while the winter is too cold, the person decides to be the underground house
When living in the underground house, the summer will be cool and winter will be warm. Additional, another reason why people live in the ground are to hide off the enemy when attacked. At that time, the houses are deep in the ground to become a safe shelter that is difficult to detect enemies. A good example of a underground city built by humans is in the Cappadocia region (Today Turkey). Here, experts discovered an underground city of "terrible" named Derinkuyu. The experts identified the city of Derinkuyu dating back to the 8th century BC. It is home to about 20,000 people. They live in underground houses to fight harsh weather and war. The fake Will Hunt said the underground city in Cappadocia is an architectural wonder with wells dug deep into groundwater. So, there are holes that lead to the surface act as a ventilation axis and there are protective layers that prevent outsiders from invading
Australia also have a town located under the ground named Couber Pedy. About half of the population here moved to the ground. In addition to the house, people also build both restaurants, bookstores, cafes, libraries, churches ... underground. The readers watching videos: Cold people with close-up work in the ground - Security with life. Source: Antv. English (according to LS) . Dịch vụ:
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