In 1918, the Representation of the People Act granted property-owning British women over 30 the right to vote. It would be another decade before other British women won the same voting rights as men.
The event was organised by the arts group Artichoke, which specializes in large-scale, participatory events. It asked 100 artists to work with women's groups around the country on banners inspired by the bold designs of the suffragettes, who led a decades-long campaign of protests and civil disobedience to get the vote for women.
The London march featured banners from Brownie packs and arts groups, an organisation for female ex-prisoners and the Worshipful Company of Upholders, an upholsterers' guild. Some marchers dressed as Edwardian suffragettes, or wore sashes in green, white or violet.
"A craft shop in London told us they'd run out of purple and green tassels, and they didn't know why," she said.
The mood was celebratory but Marriage said the event aimed to draw attention to what remains to be done to achieve equality, from closing the gender pay gap to ending workplace sexual harassment.
It also hoped to erase any notion of the suffragettes as prim campaigners from a more polite age. They defied the law, went on a hunger strike, broke windows and even set off bombs in pursuit of their goal.
"They were really extraordinary people," Marriage said. "A thousand of them went to prison. They were force-fed in prison. In today's terms they would be described as terrorists." Votes for British women were won through a combination of the militant suffragettes and their more law-abiding sisters, the suffragists.
The suffragettes and their legacy remain more controversial.
"I think they're here today in spirit, and we're giving them high fives," she said.
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