when did this start?
A camp in the mid -1907 and publication of a book in 1908 are regarded as the start of the Scout movement.
Scouting
 In mid-1907 Baden-Powell held a camp on Brownsea Island in England to test ideas for his book. This camp and the publication of "Scouting for Boys" (London, 1908) are generally regarded as the start of the Scout movement.
describe five different scouting organizations within the scouting movement Club Scout, Boy Scout, Rover Scout,  Girl Guides etc.
wiki:19603989
Scouting [SEP] Introduction
The two largest umbrella organizations are the World Organization of the Scout Movement (WOSM), for boys-only and co-educational organizations, and the World Association of Girl Guides and Girl Scouts (WAGGGS), primarily for girls-only organizations but also accepting co-educational organizations. The year 2007 marked the centenary of Scouting worldwide, and member organizations planned events to celebrate the occasion.