The relationship between the corsairs and the State changed as the power of the State grew. The rules became stricter and State control more and more present. At the end of the 18th century, the "course" started to decline until its legal death in 1856. The "course" disappeared in France with the Empire in 1804, but was officially ended only by the 1814 Treaty of Paris, where every major northern hemisphere nation except Spain, Mexico, and the United States, was present, and the 1815 Congress of Vienna.