The abacus has existed in China for over 1000 years, and yet the abacus we hold up as being standard is of Japanese invention, more and more of our abacuses are Japanese imports, and the verification system we use is from Japan. Also, many people obtain their certification from Japan.
算盤在中國至少已存在一千年，但眼觀今日，我們認定的標準算盤是日本訂的，用的算盤愈來愈多自日本進口，檢定制度襲自日本，不少人拿的證書也發自日本。