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1625 And Grotius
Hugo de Groot published in 1625 his "De Jure Belli ac Pacis" (On the Laws of War and Peace)
He systematized international law, breaking international law as it existed in his lifetime down into its component parts and applying appropriate rules to these parts. -
1648 The Peace of Westphalia
At the end of the bloody Thirty Years War, this event was negotiated through two diplomatic congresses and resulted in the new political order based upon sovereign States. -
Period: to
18th and 19th centuries
These 200 years saw a substantial expansion and consolidation of international legal rules. After the Napoleonic Wars, the Congress of Vienna in 1815 was intended to secure the long-term peace of Europe. Towards the end of the 19th century, multilateral Conventions began to regulate such matters as North Sea fisheries, the protection of submarine cables and slavery and the slave trade. 1865 Internarional Telegraph Union
1874 Universal Postal Union -
Creation of the "International Law" Term by Jeremy Bentham
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Period: to
20th Century
1919: League of Nations was created to prevent another Catastrophe like WW1. It failed because 20 years later, WW2 happened. October the 24th, 1945: UN charter came into force.