Why is ancient India an ancient civilization?

? Soul of Tianzhu-Exhibition of Ancient Indian Bronze Statues

Ancient India is a mythical land with extremely developed religions and philosophies. Therefore, bronze statues in ancient India are often symbols of myths, religious idols and philosophical metaphors, which embody the spirit of the gods. The tradition of bronze statues in India is very long, which can be traced back to bronze dancers in the Indus era from about 2500 BC to 1500 BC. Brahmanism (the predecessor of Hinduism), Buddhism and Jainism appeared in succession in the 9th-6th century BC, which provided an eternal theme for ancient Indian art, including bronze statues. In the Middle Ages of India (7th-/Kloc-0th/3rd century), Indian bronze statues reached their peak.

The earliest civilization in the world-Mesopotamia (Greek means land between two rivers). Civilization (also called "Two Rivers Civilization") originated in Sumer region (middle and lower reaches), a valley between Tigris River and Euphrates River. Mesopotamia was the seat of Babylon, which is in today's Iraq.

From 4000 BC to 2250 BC, the civilization of the two rivers reached its peak, which was called "the land of Shinar" in the Old Testament. The fertile soil piled up on both sides of the two rivers is called "fertile crescent zone" in history (South America, which is as famous as the "Golden Triangle", is called "evil crescent zone"). Because the two rivers will not flood regularly like the Nile, it is necessary to observe the astronomical phenomena to determine the time. Su, who lives in the lower reaches, invented the lunar calendar, divided a year into 12 months and ***354 days based on the moon's profit and loss, and invented the leap month, placing 1 1 day different from the solar calendar. Divide an hour into 60 minutes and take 7 days as a week. He can also calculate fractions, add, subtract, multiply and divide, solve quadratic equations with one variable, and invent 10 decimal method and 16 decimal method. They divided the circle into 360 degrees until π was close to 3. Even calculate the area of irregular polygons and the volume of some cones.

In 4000 BC, Ren Sumei first invented hieroglyphics with ideographic and signifier symbols, because most of these characters were carved on bricks, stones or black basalt. On the clay tablet, "the pen is heavy and the imprint is deep", which looks like a wedge, so it is called cuneiform writing.