5. Maastricht Treaty (1992)
The Maastricht Treaty transformed the landscape of Europe by officially creating the European Union. It introduced the euro as a common currency, revolutionizing economic relations among its members. Beyond economics, Maastricht also expanded cooperation on foreign and security policy, encouraging EU nations to present a more unified voice in global affairs. Its far-reaching provisions continue to shape European integration, citizenship, and policy-making, making the treaty a cornerstone of contemporary European politics. Learn about the Maastricht Treaty.
