How did Belgium expand voting rights for men in 1893?

In 1893, Belgium adopted universal suffrage for men aged 25 and over following a revision of the constitution.12

Prior to this change, the working class had been largely excluded from the political process due to a system of electoral property qualifications. While the 1893 reform significantly expanded the franchise, its impact was tempered by the introduction of a plural voting system. Under this arrangement, additional votes were granted to electors based on specific conditions related to their income, age, education, and status as heads of families. Despite these limitations, the reform was a landmark development that led to the election of the first Socialist deputies to the Belgian legislature.12