August 18, 1920, the 19th amendment gave women the right to vote for things. The 19th amendment guarantees all American women the right to vote. IT took decades to achive this. Decades of agitation and protest.
B) only changes his or her opinion on a policy issue when a major event happens
One of the major ways in which slaves helped to grow the colonial economies was "By developing new land" since most of their work was done in the fields.