Black Friday (1910) restraint and moderation, using no more force than might be necessary, and maintaining under any provocation they might receive, control of temper. The deaths of two suffragettes have been attributed to the treatment they received on Black Friday. Mary Clarke, Emmeline Pankhurst's younger sister, was present at both Black Friday and the demonstration in Downing Street on 22November. After a month in prison for breaking windows in Downing Street, she was released on 23December and died on Christmas Day of a brain haemorrhage, age 48. Emmeline blamed her death on the maltreatment Clarke received at the two November demonstrations; Murray
Friday the 13th the last two years, Dutch insurers received reports of an average 7,800 traffic accidents each Friday; but the average figure when the 13th fell on a Friday was just 7,500." In years which begin on the same day of the week and are of the same type (that is, whether they are a common year or leap year), Friday the 13th occurs in the same months. This sequence, given here for 1900–2099, follows a 28-year cycle from 1 March 1900 to 28 February 2100. The months with a Friday the 13th are determined by the Dominical letter (G, F, GF,