The protest had a precise trigger. In April 1971, a judge had ruled against the Yolngu people in the Gove land rights case, declaring in effect that Aboriginal people belonged to the land but the land did not belong to them. Then, on the eve of Australia Day 1972, Prime Minister William McMahon announced a policy that offered leases rather than land rights, a door quietly closing. For a generation that had watched the Gurindji walk off Wave Hill station and had marched against apartheid and the Vietnam War, it was the final insult. The embassy answered law with theatre. Calling a tent an embassy made a sharp point: Aboriginal people were being treated, as activist Gary Foley later put it, like aliens in their own land.

The umbrella was soon a cluster of tents, and the camp drew activists who would shape Aboriginal politics for decades: Foley, Isabell Coe, John Newfong, Chicka Dixon, Kevin Gilbert, the beloved Shirley Smith known as Mum Shirl. They printed their own newspapers because the mainstream press would not carry their words. The story reached The New York Times and the BBC, and the world began comparing Australia's treatment of its First Peoples to South African apartheid. In July 1972, after the government amended the law to make the camp an illegal squat, police moved in and tore it down. Three days later two hundred activists returned, met by two hundred officers. In barely six months, a few tents had united Aboriginal Australia behind a single demand for national land rights and pulled a wave of non-Indigenous support along with it.

The embassy refused to stay gone. It was removed, relocated, and re-erected through the 1970s, its pressure helping carry the Aboriginal Land Rights Act of 1976 into law. On the twentieth anniversary in 1992, it returned for good to the lawns of what is now Old Parliament House, and a sacred fire was lit there in 1998 that has become its heart. The site has weathered eviction attempts, official reviews, and suspicious fires, and it has answered with defiance and occasional dark humour. When Prime Minister Julia Gillard lost a shoe fleeing a 2012 protest nearby, the embassy joked online that she could have it back in exchange for stolen land. The shoe went back. The demand did not.

Half a century on, the camp on the grass opposite the old Parliament remains a working centre of Aboriginal sovereignty rather than a monument to it. Its anniversaries draw thousands. Ghillar Michael Anderson, the last surviving member of that original 1972 party, still speaks at its gatherings. Filmmakers keep returning to it: the 1972 documentary Ningla A-Na captured the police marching on the first protesters, and the 2022 film Still We Rise, made by Torres Strait Islander director John Harvey, gathered the elders to mark fifty years. The embassy's endurance is its argument. It stands as an unhealed reminder that the question it raised under a beach umbrella, the question of unceded sovereignty, has never been answered.