In 395 AD, Rome split into two empires - the Western Roman Empire and the Eastern Roman Empire. Each side had a ruler in charge of it. The Roman Empire was split by Theodosius.
The First Geneva Convention (1864) is one of the earliest formulations of international law. International law is the set of rules generally regarded and accepted as binding in relations between states and between nations. It serves as a framework for the practice of stable and organized international relations.
1 Public international law, which governs the relationship between states and international entities. 2  It includes these legal fields: treaty law, law of sea, international criminal law, the laws of war or international humanitarian law, international human rights law, and refugee law. Private international law, or conflict of laws, which addresses the questions of (1) which jurisdiction may hear a case, and (2) the law concerning which jurisdiction applies to the issues in the case.