Maria Montessori By aciany1 Aug 31, 1870 Born Mar 31, 1898 Son was born Period: Jan 1, 1900 to Dec 31, 1901 First work with mentally disabled children Jan 6, 1907 Opened her first Casa dei Bambini Apr 7, 1907 Second Casa dei Bambini opened Period: Jan 1, 1932 to Dec 31, 1939 Held peace conferences in Geneva, Brussels, Copenhagen, and Utrecht May 6, 1952 Died
