The cost per page is calculated based on the cost per ink cartridge and the average number of pages per cartridge, based on the 20% coverage model.
It is named after John Langdon Down, the British doctor who fully described the syndrome in 1866. Some aspects of the condition were described earlier by Jean-Ãtienne Dominique Esquirol in 1838 and Ãdouard SÃ©guin in 1844. In 1957, the genetic cause of Down syndrome, an extra copy of chromosome 21, was discovered.
John Reed (journalist) John Silas Jack Reed (October 22, 1887 â October 17, 1920) was an American journalist, poet, and socialist activist, best remembered for his first-hand account of the Bolshevik Revolution, Ten Days That Shook the World. He was married to writer and feminist Louise Bryant.