ommon constitution for a unified Germany, with the Prussian king as its monarch.
Frankfurt lost its independence after the Austro-Prussian War as Prussia in 1866 annexed several smaller states, among them the Free City of Frankfurt. The Prussian administration incorporated Frankfurt into its province of Hesse-Nassau. The formerly independent towns of Bornheim and Bockenheim were incorporated in 1890.
In 1914 the citizens of Frankfurt founded the University of Frankfurt, later called Johann Wolfgang Goethe University. This is the only civic foundation of a university in Germany; today it is one of Germany's largest universities.
From 6 April to 17 May 1920, following military intervention to put down the Ruhr Uprising, Frankfurt was occupied by French troops. The French claimed that Articles 42 to 44 of the peace treaty of Versailles concerning the demilitarisation of the Rhineland had been broken. In 1924 Ludwig Landmann became the first Jewish Mayor of the city, and led a significant expansion during the following years. However, during the Nazi era, the synagogues of Frankfurt were destroyed.
The city of Frankfurt was severely bombed in World War II (1939�1945). About 5,500 residents were killed during the raids, and the once famous medieval city centre, by that time the largest in Germany, was destroyed. Post-war reconstruction took place in a sometimes simple modern style, thus irrevocably changing the architectural face of Frankfurt. Only very few landmark buildings have been reconstructed historically, albeit in a simplified manner. The collection of historically significant Cairo Genizah documents of the Municipal Library was destroyed when the city was bombed. According to Arabist and Genizah scholar S.D. Goitein, "not even handlists indicating its contents have survived."
Frankfurt became a ground battlefield commencing 26 March 1945, when the Allied advance into Germany was forced to take the city in contested urban
