 Complete the following phrase:  The square was previously named Babelsberger Platz 1907-1910 and Bülowplatz 1910-1933, and was the focus of one of the last mass demonstrations in Berlin against the Nazi Party on January 25, 1933five days before Adolf Hitler was appointed German Chancellor. Later that year, with the rise of the Third Reich, it was renamed Horst-Wessel-Platz 1933-1945 after National Socialist martyr Horst Wessel. Following the 