In 2002, a mysterious screw was discovered in China. This object is another discovery that contradicts history and archaeology records.
Evidence of advanced ancient human civilization
It is believed that the discovered screw in Lanzhou, China, is 300 million years old. According to researchers, it may prove the existence of advanced ancient civilization or it may be part of alien culture.
This screw proves that historical records of the technology of ancient civilizations may not be correct.