It's a day of celebration for Israelis but for Palestinians it's the Nakba, the catastrophe. The foundation of Israel on 14 May 1948 meant hundreds of thousands of them fled or were expelled from their homes.
The Hagia Sophia in Istanbul has become a bone of contention. Since it was secularised in 1935, it has been a museum. Now Turkish nationalists want to turn it back into a mosque - while the Patriarch of Constantinople wants to use it as a church again. A photo essay by Klaus Dahmann.