@waitbutwhy Civilization, as defined by the invention of writing, is only ~5500 years old https://en.m.wikipedia.org/wik...
@但是为什么写作的发明所定义的文明只有5500年的历史https://en.m.wikipedia.org/wik...
@waitbutwhy Civilization, as defined by the invention of writing, is only ~5500 years old https://en.m.wikipedia.org/wik...
@但是为什么写作的发明所定义的文明只有5500年的历史https://en.m.wikipedia.org/wik...