"From the author of the prizewinning King Leopold's Ghost comes an account of the first grassroots human rights campaign, which freed hundreds of thousands of slaves around the world." "In 1787, twelve men gathered in a London printing shop to pursue a seemingly impossible goal: ending slavery in the largest empire on earth. Along the way, they would pioneer most of the tools citizen activists still rely on today, from wall posters and mass mailings to boycotts and lapel pins. This talented group combined a hatred of injustice with uncanny skill in promoting their cause. Within five years, more than 300,000 Britons were refusing to eat the chief slave-grown product, sugar; London's smart set was sporting antislavery badges created by Josiah Wedgwood; and the House of Commons had passed the first law banning the slave trade."--BOOK JACKET.