Several, including the Indus Valley civilisation split between today's India and Pakistan, may have done just that; its script, if indeed it is one, remains undeciphered.

包括今天印度和巴基斯坦之间分裂的印度河流域文明在内的几个文明可能就是这样做的；它的脚本，如果确实是一个， 仍然未破译。