exeunt-pursued-by-a-bear: a-mini-a-day: 300-year-old Chinese abacus ring was used during the Qing Dy
exeunt-pursued-by-a-bear: a-mini-a-day: 300-year-old Chinese abacus ring was used during the Qing Dynasty to help traders.Source. [18th century Chinese teenager voice] Haha and teachers said we wouldn’t have a calculator with us everywhere we go -- source link