Civilization achievements of ancient two river basins

The civilization achievements of this basin include calendar, mathematics, writing, art and science and technology.

1. Calendar achievements: Ancient residents in the two river basins invented the lunar calendar, which is a calendar based on the rise and fall of the moon. The ancient residents in the two river basins not only divided the year into 12 months, but also invented leap months to adjust the relationship between calendars and astronomical phenomena. In addition, the ancient residents of the two river basins innovatively divided an hour into 60 minutes and took 7 days as a week, which had a far-reaching impact on the later timing system.

2. Mathematical achievements: In the field of mathematics, the ancient residents of the two river basins have also made remarkable achievements. Mastered the four operations of fraction, addition, subtraction, multiplication and division, and even solved the quadratic equation of one yuan. The division of the circle is also very accurate. Divide the circle 360 degrees, and know that the pi is about 3.

In addition, the ancient inhabitants of the two river basins were able to calculate the area of irregular polygons and the volume of some cones, which laid a solid foundation for the later development of astronomy, geography and architecture.

3. Writing achievements: Cuneiform writing is a writing system invented by ancient residents in Lianghe Valley, and it is one of the oldest known human writing. Most of these words are carved on clay tablets, including letters, remittances, recipes, laws, hymns, prayers and knowledge in mathematics, astronomy, medicine and other fields. The appearance of cuneiform greatly promoted the cultural inheritance and exchange, and preserved and passed on the knowledge and culture of the ancient two river basins.

4. Achievements in art and science and technology: In architecture, sculpture, painting and arts and crafts, the ancient residents of the two river basins showed outstanding talents and creativity. Ancient residents in the two river basins built buildings with mud bricks, among which the most spectacular and famous building was Baota Temple.

In addition, the ancient inhabitants of the two river basins also made great achievements in science and technology, and were able to manufacture canoes, sailboats and wooden boats, which were not only used in daily life and trade, but also played an important role in war and exploration.