When the French revolution happened, most of the Nobility that hadn't escaped was executed, and all things relating to the Church were forbidden. Even the calendar was changed because the names of months were related to Christian things. It influenced numerous political revolutions, Haiti just being one of the country that started a revolution.
A major accomplishment of Britain’s Reform Act of 1832 was that it gave voting rights to "all adult males" in society, as opposed to only males of certain classes as before.