The right to vote at parliamentary elections was gradually extended by the Reform Acts of 1832, 1867, and 1884, until in 1918 all men over 21 and all women over 30 were enfranchised. In 1928 the age at which women were allowed to vote was lowered to 21. The age for both males and females was lowered to 18 in 1969. Voting was a public affair until the Secret Ballot Act 1872. See also poll books.