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Welcome to Oxford Public International Law

Oxford Public International Law (OPIL) is a comprehensive, single location providing integrated access across our international law services, bringing you one step closer to the perfect research solution.

Our ground-breaking online resources work to speed up research and provide easy access to authoritative content, essential for anyone working in international law.

The Universal Declaration on Human Rights was first signed on 10th December 1948, making 2018 its 70th anniversary.

We are marking this important moment in global history with our Human Rights Quiz. Including topics such as reproductive rights, education, housing, and the right to a fair trial, our quiz features freely available content from the Max Planck Encylopedia of Public International Law and the Max Planck Encyclopedia of Comparative Constitutional Law.

Test your knowledge now >>

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Site News

January 31, 2019

New OHT Editorial: From Kanghwa to Shimonoseki: The Disputes over the Sovereignty of Tributary Chosŏn Korea

Hyoung-Jin Nho looks at the international legal order in East Asia, in the latest monthly editorial.

January 30, 2019

OXIO - Call for Rapporteurs

Find out how you can apply to be an OXIO rapporteur.

December 31, 2018

New OHT Editorial: The Congress of Aachen [Aix-la-Chapelle] (1818) and the Completion of the Vienna System

Randall Lesaffer looks at the Vienna system, the political and legal order of Europe after the fall of Napoleonic France, in the latest monthly editorial.

December 31, 2018

Latest EPIL Update Now Live

Three new articles and substantial updates to 10 articles are now available within the Max Planck Encyclopedia of Public International Law (MPEPIL).