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 from its fire in 1871. Additionally, he served on the Board of Trustees of the Field Columbian Museum in Chicago. Meanwhile, his wife attended fundraisers for Bryn Mawr College, a women's college in Bryn Mawr, Pennsylvania. Ream married Caroline Thompson Putnam in 1876 in Madison, New York. They resided at 1901 Prairie Avenue in Chicago. They had several children. One of his sons, Robert Ream, married Mabel Wrightson, the daughter of Reverend W. G. Wrightson and sister of Harry Wrightson, in Cuckfield, West Sussex, in 1907. Another son, Louis, who graduated from Princeton University and worked for the New York