In the State of the Maya great success achieved mathematics and astronomy. Scientists have created remarkable for its precision solar calendar. They were able to predict the onset of solar eclipses, known periods of the planets and the Moon. In the cities of the Maya erected stone pillars - the stele on which hieroglyphics record important dates and events in the life of the state. Maya did not know metal tools. Their stone carvers worked - jade - incisors. Artfully were made of fabric, wood and ceramics with artistic painting.The Mayas were not livestock; land they farmed manually - using sharpened sticks. Therefore, even desyatisantimetrovymi layer of volcanic ash made it impossible to land cultivation, and in fact fallen ash layer thickness at times exceed this mark.
The Russian Federation is one of the biggest countries in the world. Russia is situated in Europe and Asia. It is washed by seas and oceans . There are different types of climate in Russia. It's very cold in the North even in summer. In the South is rather warm even in winter the temperature is above zero. There are many rivers inRussia. The longest river is Volga. There are a lot of acient and beautiful cities. St. Petersburg is the most wonderful city in Russia. It is a real open air museum. Moscow is the capital of Russia. It's the biggest city in Russia. There are a lot of sights there. The heart of Moscow is Red square. Russia has always played an important role in the world.
