 Complete the following phrase:  During the Berlin Blockade, the Uprising of 1953, and the Hungarian Revolution of 1956, Rudolph-Wilde-Platz in front of the building became a gathering place for protest rallies. After the construction of the Berlin Wall in 1961, the steps of Rathaus Schöneberg were the location where U.S. President John F. Kennedy spoke on 26 June 1963, proclaiming Ich bin ein Berliner. On the night of 