Complex sentence: In 1973, archeologists unearthed a number of wood scripts from a Han dynasty tomb in Hubei, one of the wooden script written: "当利二月定算", this is one of the earliest examples of using counting rod numeral in writing.
Split into simpler sentences: In 1973, archeologists unearthed a number of wood scripts from a Han dynasty tomb in Hubei. This is one of the earliest examples of using counting rod numerals in writing.