Throughout history women have generally not been allowed to vote, with, by the 19th century, a few exceptions based on the woman's marital status or her property ownership, and then only in some elections - some local ones, for example. But the 1832 Great Reform Act, used the word "male" thus confirming the exclusion of women from the electorate. After a long-running campaign, and after proving their patriotism in WW1, changes were finally made.
1918-28, women could vote at age 30 with property qualifications or as graduates of UK universities, while men could vote at 21 with no qualification. Since 1928 women have had equal suffrage with men.