But this has not always been the case. In the past, the King or Queen had huge powers and there was very little that ordinary people could do to have a say in how they were governed.
In the early 1800s, there were still very few people who could vote – and the ones that could were all men. Women didn’t have a say at all.
via 6 February 1918: Women get the vote for the first time – CBBC Newsround