Its use was described on sumerian clay tablets from nearly four thousand years ago .
它的用途將近四千年前就被記載在蘇美爾人的泥版上。
Above all , why should the sumerian system have not merely endured but become an almost universal conqueror ?
首先,為什么蘇美爾人的方式不僅僅持久不衰而且變成了幾乎全世界通用的東西。
Sumerian is a linguistic isolate , but the script has been phonetically deciphered , and the language partly deciphered .
蘇美爾語是一個孤立的語言,但它的文字已經從發音層面被破譯了,語言也部分被破譯了。
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 .