Its use was described on sumerian clay tablets from nearly four thousand years ago .
它的用途将近四千年前就被记载在苏美尔人的泥版上。
Above all , why should the sumerian system have not merely endured but become an almost universal conqueror ?
首先，为什么苏美尔人的方式不仅仅持久不衰而且变成了几乎全世界通用的东西。
Sumerian is a linguistic isolate , but the script has been phonetically deciphered , and the language partly deciphered .
苏美尔语是一个孤立的语言，但它的文字已经从发音层面被破译了，语言也部分被破译了。
Temporary writing-tracking sumerian accounts payable or inviting a friend to a birthday party in pompeii-was done in clay or wax tablets that could be wiped clean and reused .
