European Union created an open market where goods and people are being transferred without limitations that existed when the borders were closed. That is why people can freely travel, get jobs and many other benefits inside the member countries of EU.
Explanation:
The idea of EU started developing after WW2, and the countries that started developing that idea were France, Germany and Benelux countries.
It has developed into one of the most important economic forces in the world, and also unified Western Europe in a common struggle for a better life.
