I want to know the answer to the following question:
What year was Grande Ile classified as a World Heritage site?
All the background I'm provided with is that "Strasbourg is immersed in the Franco-German culture and although violently disputed throughout history, has been a bridge of unity between France and Germany for centuries, especially through the University of Strasbourg, currently the second largest in France, and the coexistence of Catholic and Protestant culture.". Is that enough to answer the question?
Answer: no