Units of paper quantity size and type of paper being sold. Reams of 500 sheets (20 quires of 25 sheets) were known in England in c1594; in 1706 a ream was defined as 20 quires, either 24 or 25 sheets to the quire. In 18th- and 19th-century Europe, the size of the ream varied widely. In Lombardy a ream of music paper was 450 or 480 sheets; in Britain, Holland and Germany a ream of 480 sheets was common; in the Veneto it was more frequently 500. Some paper manufacturers counted 546 sheets (21 quires of 26 sheets). J.S. Bach's manuscript paper at Weimar
Paper craft century A.D. In much of the West, the term origami is used synonymously with paper folding, though the term properly only refers to the art of paper folding in Japan. Other forms of paper folding include Zhezhi (Chinese paper folding), Jong-i.e.-jeop-gi, from Korea, and Western paper folding, such as the traditional paper boats and paper planes. Papel picado, as practiced in Mexico and other places in Latin America is done using chisels to cut 50 to a hundred sheets at a time, while Chinese paper cutting uses knives or scissors for up to 8 sheets. Wycinanki and other European forms