From a history of the equal suffrage movement:
When the Labour Party was formed in 1900, Emmeline Pankhurst hoped that they would support votes for women on the same terms as men. This was not the same as supporting full adult suffrage. Pankhurst's proposals were defeated at the Labour Party Conference. After this she left the Party and established the Women's Social and Political Union, or WSPU. Pankhurst and her daughters Christabel and Sylvia were leaders of the newly formed group. Unlike the NUWSS's structure they were unelected as leaders.
Pankhurst decided to restrict membership of the WSPU to women (unlike the NUWSS). Pankhurst argued, in a move away from the NUWSS's tactics, that "deeds, not words", were to be the WSPU's motto. Like the NUWSS, the suffragettes used posters, pamphlets, public meetings and marches in their campaign. The WSPU sold 20,000 copies of their newspaper, Votes for Women, each week.
The WSPU adopted militant, direct action tactics which make the actions of Extinction Rebellion and Just Stop Oil seem tame in comparison. The WPSU chained themselves to railings, disrupted public meetings, assault, undertook hunger strikes and caused damage to public property.
In 1913, Emily Davison stepped out in front of the King's horse at the Epsom Derby. Her purpose remains unclear, but she was hit and later died from her injuries.
In the same year, the WPSU burned down the house of the Chancellor of the Exchequer and future Prime Minister, David Lloyd George (who was supportive of women's suffrage).
Suffragettes smashed windows of upscale shops and government offices. They cut telephone lines, spat at police and politicians, cut or burned pro-suffrage slogans into stadium turf, sent letter bombs, destroyed greenhouses at Kew gardens, chained themselves to railings and blew up houses. A doctor was attacked with a rhino whip, and in one case suffragettes rushed the House of Commons. On 18 July 1912 Mary Leigh threw a hatchet at Prime Minister Herbert Asquith.
On 10 March 1914, suffragette Mary Richardson (known as one of the most militant activists, also called "Slasher" Richardson) walked into the National Gallery and attacked Diego Velázquez's painting, Rokeby Venus with a meat cleaver. In 1913 suffragette militancy caused £54,000 worth of damage, £36,000 of which occurred in April alone (over £6m in today’s money).
Suffragettes were arrested and imprisoned but continued their protest in prison by hunger strike. Although initially they were fed by force, in 1913 the Prisoners Temporary Discharge for Ill-Health Act was passed by Parliament. Commonly known as the Cat and Mouse Act, this allowed prison authorities to release hunger-striking women prisoners when they became too weak, and re-arrest them when they had recovered. Emmeline Pankhurst was jailed and released on 11 occasions.