公元1041年毕升发明活字印刷术取代刻版印刷。
AD 1041. Bi Sheng invented the art of letter-press printing.
到了900多年前的北宋时期，平民发明家毕升，经过反复试验，发明了活字印刷术。
During Northern Song Dynasty more than 900 years ago, Bi Sheng invented movable-type printing after years of experimenting.
其中，东汉时期的蔡伦（AD 25-220）被认为是造纸术的发明者，北宋时期的毕升（960-1127）是活字印刷术的发明者。
It is generally assumed that Cai Lun of the Eastern Han Dynasty (AD 25-220) was the inventor of plant-fiber paper. Bi Sheng in the Northern Song Dynasty (960-1127) invented movable clay printing.
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