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
Ream National Park Ream National Park Ream National Park ( - "Outtyeancheat Ream"), its official name is Preah Sihanouk Ream National Park ( - "Outtyeancheat Preah Sihanouk Ream"), is a national park of Cambodia located from Sihanoukville city in the Prey Nob district of the Sihanoukville Province in south-eastern Cambodia. It was established in 1993, as the Cambodian government began to take action for the protection of the country's threatened natural resources. The national park's biological value is defined by its combination of rivers, forests, mangroves, estuaries, beaches, coral reefs, wildlife, and marine life. Ream National Park constitutes the south-east of Prey Nob