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РанішеКафедральний собор Светіцховелі завершено1029 CE
ПізнішеЧичен-Іца Ель-Кастільо на висоті1050 CE
Наука й відкриття

Bi Sheng (972–1051) was a Chinese artisan and engineer during the Song dynasty (960–1279), who invented the world's first movable type. Bi's system used fired clay tiles, one for each Chinese character, and was invented between 1039 and 1048. Printing was one of the Four Great Inventions.

Ключові постатіBi Sheng
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