Sphagnum cuspidatum has also been used as a "green" alternative to water purification in public swimming pools; it inhibits bacterial growth, and greatly reduces the amount of chlorine required to maintain sanitary water Sphagnum cuspidatum Sphagnum cuspidatum, the feathery bogmoss, toothed sphagnum, or toothed peat moss, is a peat moss found commonly in Great Britain, Norway, Sweden, the eastern coast of the United States, and in Colombia. "Sphagnum cuspidatum" is brown to greenish brown in color with narrow green stems. Individual plants are slender and weak-stemmed. They are moderately sized compared to other peat mosses. Aquatic forms are flaccid and plumose giving
What Is History? and were instead products of their own places and times, which in turn decided what "facts of the past" they determined into "facts of history". British historian Richard J. Evans said "What Is History?" caused a revolution in British historiography in the 1960s. Australian historian Keith Windschuttle, a critic of Carr, said "What Is History?" is one of the most influential books written about historiography, and that very few historians working in the English language since the 1960s had not read it. What Is History? What Is History? is a study that was written by the English historian E. H.