“It was during this time that he wrote some of his most famous and enduring works, in particular “The History of Freedom in Antiquity” and “The History of Freedom in Christianity” (originally delivered as lectures in 1877 and published posthumously in 1907), the only parts of a projected magnum opus on “The History of Liberty.” Indeed, by this time Acton had developed one of his most enduring and important insights: Human history is essentially the story of individual liberty or, more precisely, man’s struggle for liberty.” – OLL Online Library of Liberty, January 31, 2023