In 1917, the adoption of the revolutionary Mexican Constitution and the October Revolution shook the foundations of international order in profound, unprecedented and lasting ways. These events posed fundamental challenges to international law, particularly to foundational concepts of property, statehood and non-intervention, and the role of law itself. Revolutions in International Law: The Legacies of 1917 (Cambridge UP, 2021) asks what we might learn about international law from analysing how its various sub-fields have remembered, forgotten, imagined, incorporated, rejected or sought to manage the revolutions of 1917. It shows that those revolutions had wide-ranging repercussions for the development of laws relating to intervention, human rights, investment, alien protection and state responsibility, and for the global economy subsequently enabled by international law and overseen by international institutions. The varied legacies of 1917 play an ongoing role in shaping political struggle, global anti-imperialist and anti-racism movements to this day. Listen in and see how these complex events shaped international law, human rights and anti-imperialist movements globally.