4. Treaty of Rome (1957)
The Treaty of Rome was a landmark agreement that established the European Economic Community (EEC), setting the stage for unprecedented economic cooperation among European nations. By promoting free movement of goods, people, and capital, the treaty laid the groundwork for deeper integration. Its vision ultimately led to the formation of the European Union, fundamentally transforming how European countries relate to one another. The principles enshrined in the Treaty of Rome continue to underpin EU policies and expansion efforts today. Explore the Treaty of Rome.
