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Paper, matted or felted sheet, usually made of cellulose fibres, formed on a wire screen from water suspension. A brief treatment of paper follows. For full treatment, see papermaking. Paper has been traced to China in about ad 105. It reached Central Asia by 751 and Baghdad by 793, and by the 14th century there were paper mills in several parts of Europe. The invention of the printing press in about 1450 greatly increased the demand for paper, and at the beginning of the 19th century wood and other vegetable pulps began to replace rags as the principal source of ....
History of Flight: From Breakthroughs to Disasters history.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from history.com Daily Mail and Mail on Sunday newspapers.