Chinese characters are over 3,000 years old, making them one of the oldest continuously used writing systems in the world. The earliest known characters were carved on oracle bones (甲骨文) during the Shang Dynasty.
culture
There are roughly 50,000+ Chinese characters in existence, but you only need about 2,500-3,000 to read a newspaper. The HSK 6 exam requires about 2,600 characters.