14 Caribbean countries are suing Britain, France and the Netherlands and demanding what could be hundreds of billions of pounds in reparations for slavery.
Around 175 years after Britain freed its last slaves in the West Indies, an alliance of Caribbean nations is demanding to be repaid for the "awful, lingering legacy of the Atlantic slave trade".
Caricom, a group of 12 former British colonies together with the former French colony Haiti and the Dutch-held Suriname, believes the European governments should pay – and the UK in particular.
It has hired the British law firm Leigh Day, which recently won compensation for hundreds of Kenyans tortured by the British colonial government during the Mau Mau rebellion of the 1950s.
Caricom has not specified how much money they are seeking, but senior officials have pointed out that Britain paid slave owners £20 million when it abolished slavery in 1834. That sum would be the equivalent of £200 billion (N51,240,329,177,549) today.
In the United States, the idea of reparations has surfaced a number of times over the years, but have never been paid out. At the end of the Civil War, around 400,000 acres of land in Florida, Georgia and South Carolina were taken from former slave owners and earmarked for freed slaves.
But the decision was reversed by President Andrew Johnson after President Abraham Lincoln's assassination in 1865, it was noted by Al Jazeera America.
In 2008, Barack Obama said he did not support reparations to the descendants of slave, going against the views of around two dozen members of Congress who sponsored legislation to create a commission on slavery.
In the same year, the House apologised for slavery, with the Senate following suit in 2009, but neither mentioned compensation.
In its lawsuit, Caricom claims slavery condemned the region to a poverty that still afflicts it today.
And they are comparing their demand to Germany recompensing Jewish people for the Holocaust and New Zealand compensating Maoris.
"The awful legacy of these crimes against humanity ought to be repaired for the developmental benefit of our Caribbean societies and all our peoples," said Ralph Gonsalves, the prime minister of the tiny Saint Vincent and the Grenadines. He called it a "historic wrong that has to be righted".
Verene Shepherd, who is coordinating Jamaica's demands for reparations, said their slave ancestors "got nothing" when they were freed. "They got their freedom and they were told 'Go develop yourselves'," she said.
Critics have pointed out that many of Caricom's members are hardly poor – including millionaire havens such as the Bahamas and Barbados.
Prime minister Tony Blair expressed regret for the "unbearable suffering" caused by Britain’s role in slavery in 2007, but made no mention of financial compensation. Britain has said that paying reparations for slavery is the wrong way to address "an historical problem".
Caricom insists they are hoping to reach a settlement with the European countries and will only take legal action if talks collapse.
A Caricom reparations commission has been set up to work out should be paid and how much, led by Barbados historian Sir Hilary Beckles.
Sir Hilary says they are "focusing" on Britain because it was the largest slave owner in the 1830s.
"The British made the most money out of slavery and the slave trade - they got the lion's share. And, importantly, they knew how to convert slave profits into industrial profits," he said.
Some Caricom countries already get financial aid from Britain and other Commonwealth countries.