Units of paper quantity as ISO 4046. In Europe, the DIN 6730 standard for Paper and Board includes a definition of 1 ream of A4 80gsm (80 g/m) paper equals 500 sheets. The word 'ream' derives from Old French "reyme", from Spanish "resma", from Arabic "rizmah" "bundle" (of paper), from "rasama", "collect into a bundle". (The Moors brought manufacture of cotton paper to Spain.) Early variant rym (late 15c.) suggests a Dutch influence. (cf. Du. "riem"), probably during the time of Spanish Habsburg control of the Netherlands. The number of sheets in a ream has varied locally over the centuries, often according to the
Norman B. Ream he opened a store. Later, Ream moved to Iowa, where he purchased cattle and grains on credit and sold them to farmers on credit. He ran up debt as a result of a crop failure, but managed to pay it off, and moved to Chicago in 1877. Shortly after, Ream joined the Chicago Board of Trade. Ream would rise early to talk to the people at the Union Stock Yards before the Board of Trade opened at 10AM. Over the year, Ream became an investment advisor to business magnates like J. P. Morgan, Marshall Field, George Pullman. Later, with Robert