"In the years leading up to the First World War, “suffragettes conducted a ferocious and prolonged bombing campaign across the whole of the UK; planting improvised explosive devices (or IEDs) in places as varied as Westminster Abbey, St Paul’s Cathedral, the Bank of England, the National Gallery, railway stations and many other locations”
http://www.theweek.co.uk/91416/british-suffragettes-early-uk-terrorists
History teachers used to insist this got them nowhere, women were granted the vote because they worked jolly hard on the home front in WW1. I doubted this when I was 12; I doubt it more so now. There was a long history of peaceful suffragism and it got women absolutely nowhere. It wasn't till they got violent that the government started to pay attention.
But how you ban all terrorism - which I would happily do - without acknowledging its pivotal role in creating modern Britain, I don't know.
It's worth asking, I think, whether the British government is particularly resistant to peaceful calls for reform. Women in Wyoming got the vote decades earlier, in 1869, two full generations before Britain, and in New Zealand it was 1893. Neither place needed violent campaigns, but I think in both cases the reform was made for party political purposes. In Britain, though, it looks as if neither party wanted women voting for them, and it took bombs to change their minds.
https://www.wyohistory.org/encyclopedia/right-choice-wrong-reasons-wyoming-women-win-right-vote