Chinese Zhusuan is a time-honoured traditional method of performing mathematical calculations with an abacus. By moving beads along rods, practitioners can perform addition, subtraction, ...

The abacus' recent World Heritage List induction may multiply its power to rack up larger figures among collectors. Zhang Kun reports in Shanghai. While abacuses aren't big-ticket antique collector ...

After repeated moves and donating or selling much of his collection, Ge has relegated his collection's remnants to an indoor antique market with so few shoppers that stall owners gathered around Ge ...