The hanging garden in Babylon is one of the seven wonders of the world. It is said that this garden was built for the princess by the king at that time.
3. Pictographs with ideographic and ideographic symbols were first invented, because most of these characters are engraved on bricks, stones, black basalt and clay tablets, with heavy strokes and deep impressions, forming a wedge like a wooden wedge, so they are called "cuneiform".
4. Invented the lunar calendar, taking the moon's profit and loss as the timing standard, and divided a year into 12 months ***354 days. And invented the leap month, which makes 1 1 day different from the solar calendar, dividing an hour into 60 minutes and taking 7 days as a week.
5. Mastered the methods of four operations of fraction, addition, subtraction, multiplication and division, and understood the solution of quadratic equation in one variable. They invented 10 decimal method and 16 decimal method. They divided the circle into 360 degrees and knew that π was close to 3, and even calculated the area of irregular polygons and the volumes of some cones.
Extended data
The kingdom of Babylon (about 3500 BC-729 BC) is located in the Mesopotamian plain, roughly in today's Iraq.
About 5000 years ago, people here established the earliest slave country of mankind, with advanced casting technology. By18th century BC, the ancient Babylonian kingdom had been established here. On this plain, few cities in the world developed at that time, and the earliest epics, myths, pharmacopoeias, farmers' yearbooks and so on were circulated.
Historical investigation
In the second half of 2nd/Kloc-0th century BC, before Elam destroyed the third Ur Dynasty, Ishbiella, an Akkadian general from Mali, was sent to Ising to buy grain, where he established his capital and declared his independence.
In 2003 BC, Elam occupied city of ur, and the third Ur Dynasty perished. City of ur was destroyed, and King Ebi Su En was bound in the mountain city of Ilan.
In BC 1996, biella, the Yishi, drove away the Elamites, occupied city of ur, established the first Yishi dynasty, and controlled the hegemony of South Mesopotamia. Then an Amorite, Larsha, became independent from Ising, who confronted Larsha for many years.
At the beginning of19th century BC, the Amner Num tribe of Amorites got rid of the control of Yixin in Babylon, and its leader Sumabu (1894- 188 1 formerly) established the kingdom of Babylon, also known as the first dynasty of Babylon.
Baidu Encyclopedia-Kingdom of Babylon