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Syndication

Mon, 10 June 2019
Norteko Ferrokarrilla/2019-06-07/Txina eta papera

Papera Txinan garatu zen, diotenez, Han dinastiako Cai Lun eunukoak asmatuta. Eta ez da asmakuntza on ba bakarrik, gainera, bigarren mendean bertan, papergintza prozesu merke bilakatu zuten.

Direct download: NFXXIII-39a.mp3
Category:science -- posted at: 2:45am EDT