Gaius was a Roman jurist whose writings became authoritative legal texts during the late Roman Empire existence. Gaius made one of the first systematic collections and analyses of Roman law dealing with the legal status of persons (slaves, free persons, and citizens), property rights, contracts, and various legal actions.
The Institutes of Roman Law is Gaius’ best known work which became the authoritative legal text during the late Roman Empire. It was the first systematic collection and analysis of Roman law which dealt with all aspects of Roman law: the legal status of persons (slaves, free persons, and citizens), property rights, contracts, and various legal actions.
Speaking about the author’s views and his overall position, on the one hand, he is trying to relay difference between state and law of people, he says that when people live in one state, in other words, they are governed by certain customs and laws, that is the law which is partly theirs alone, theirs culture , theirs state and partly could be shared by all mankind, because it is common in every nation. On the other hand, It’s a civil law which is manmade and ius gentium which natural reason makes for all mankind, its basis was human consensus, is followed by all people alike.
To sum up, I want to reflect on its contribution to International Law: This text in which explains about state law and ius gentium, doesn't have any correlation between ius gentium and international law, however, it does have certain things between state law and international law. Ius gentium certainly didn't correspond to what is called international law, as we know, it is not a body of law which governed relations between independent states. Ius gentium acted within the state, Rome, for foreigners, but