The Freedom of the Seas

This edition has been fully restored with modern typesetting, custom cover design. Hugo Grotius's The Freedom of the Seas is a landmark legal and political argument for open ocean access, free navigation, and the right of nations to trade without imperial monopoly. Born from the Dutch struggle against Portuguese exclusion in the East Indian trade, and sharpened by the famous controversy over a captured Portuguese galleon, the work helped lay foundations for modern international law. It enters a wider debate over maritime sovereignty, answering claims—later defended by John Selden's Mare Clausum—that the sea could be privately owned or controlled by a state. Grotius builds his case from natural law, Christian duty, and Roman legal principles, insisting that justice cannot rest on custom, force, or convenience. He argues that all humanity shares one nature and moral law, that rulers must uphold fairness beyond their own borders, and that the sea, like lawful commerce, belongs to common use. Rejecting Portuguese claims based on discovery, papal donation, war, occupation, prescription, or custom, he defends free passage and free trade as rights no nation may monopolize.