Compared with the four ancient civilizations, the Sumerian civilization is more distant and more amazing than the history of ancient China, ancient Egypt, ancient Babylon, and ancient India, and like the Maya civilization, the Sumerian civilization also mastered a lot of astronomical knowledge. Even, in the book "Earth Chronicle", it is said that Pluto has long been found in the astronomy of the Sumerian civilization.
Sumerian
Not only did the Sumerians know of the existence of Pluto, but they also had a total of 12 companions in our solar system in their astronomical knowledge. But according to modern scientific observations, there are only eight planets in total. Plus Pluto, the sun, even if you count the moon, there are only 11 friends, in sumerian mythology, the twelfth lesson planet is the Sumerian mother star - Nebiru star.
Are there still planets in the solar system that we humans have not observed? Needless to say, there are really some scientists who have found that the orbit of Halley's Comet is somewhat abnormal when observing Halley's Comet, so some scientists speculate that there may be a planet in the solar system that has not been observed by humans called X planet, because of the gravitational pull of X planet, so it leads to an abnormality in the orbit of Halley's comet. So why haven't humans observed the existence of Planet X?
Scientists have speculated that the orbit of Planet X is very narrow and long, and it did not reach the observable sub-range until about 1800.
It is mysterious that such an advanced Sumerian civilization could have such astronomical achievements without the help of any modern observational equipment, and that the Sumerians created the world's earliest writing, the cuneiform script, which was created 5,000-6,000 years ago. In contrast to egyptian hieroglyphs, which were also created around 5500 years ago, the Sumerian civilization created the world's oldest script.
Europeans at first always believed that their cultural origin was Greek, and later with the development of archaeology, some of them believed that their cultural origin was Egypt. With the excavation of Sumerian ruins, some even believe that the source of Western civilization is Sumer.
The Sumerians had modern professions of doctors, teachers, and lawyers for thousands of years.
The Sumerians were able to calculate 15 digits
Developed trade, agriculture, livestock, handicrafts, such as textiles, pottery, printing, winemaking, shipbuilding, etc. there are also perfect urban sewer systems
Such a developed Sumerian civilization eventually disappeared in the long river of history, only our Chinese civilization has been passed down to this day, and surviving is the last word. Survive, there are not so many questions left to archaeologists.