印刷术的诞生

Guten*erg invented printing, the most consequential invention of the Middle Ages. The technical advent**e of Guten*erg is very impressive. The printing press, the *****, the ink... . He manages to assem*le all of these ****s, and to actually print *ooks. Guten*erg tries a new form of layout and introduces a num*er of other innovations. The visual quality of his printing yields ...