Women such as Millicent Garrett Fawcett and Emmeline Pankhurst campaigned for the right to vote for all. The movement was split into labels: suffragists and suffragettes, whose members took a harder stance, staging loud protests, smashing windows and the like.

Mrs. Fawcett considered herself a suffragist, a moderate opposed to the sometimes violent protests of campaigners like Ms. Pankhurst, known as a suffragette.

History so far seems to have been relatively kinder to the moderate. Last year, Prime Minister Theresa May announced that Mrs. Fawcett would be the first woman to be honored by a statue in Parliament Square in London, where there are 11 statues of men — giants like Churchill, Lincoln and Mandela.

(A memorial to Ms. Pankhurst and her daughter Christabel stands in a corner of the Palace of Westminster in London.)