Jane intended to become a doctor but was forced to withdraw from her medical studies because of her poor health. During a tour to Europe, she visited a settlement house, Toynbee Hall, in London's East End. This visit helped to finalize the idea then current in her mind, that of opening a similar house in an underprivileged area of Chicago. In 1889 she and a friend, Ellen Starr, leased a large home built by Charles Hull at the corner of Halsted and Polk Streets, their purpose being "to provide a center for a higher civic and social life; to institute and maintain educational and philanthropic enterprises and to investigate and improve the conditions in the industrial districts of Chicago." By its second year of existence, Hull-House was host to two thousand people every week.
For her own aspiration to rid the world of war, Jane Addams created opportunities or seized those offered to her to advance the cause. In 1906 she gave a course of lectures at the University of Wisconsin summer session which she published the next year as a book, Newer Ideals of Peace. She spoke for peace in 1913 at a ceremony commemorating the building of the Peace Palace at The Hague and in the next two years, as a lecturer sponsored by the Carnegie Foundation, spoke against America's entry into the First World War. In January, 1915, she accepted the chairmanship of the Women's Peace Party, an American organization, and four months later the presidency of the International Congress of Women convened at The Hague largely upon the initiative of Dr. Aletta Jacobs, a Dutch suffragist leader of many and varied talents. When this congress later founded the organization called the Women's International League for Peace and Freedom, Jane Addams served as president until 1929, as presiding officer of its six international conferences in those years, and as honorary president for the remainder of her life.
Publicly opposed to America's entry into the war, Miss Addams was attacked in the press and expelled from the Daughters of the American Revolution, but she found an outlet for her humanitarian impulses as an assistant to Herbert Hoover in providing relief supplies of food to the women and children of the enemy nations, the story of which she told in her book Peace and Bread in Time of War (1922).
After sustaining a heart attack in 1926, Miss Addams never fully regained her health. Indeed, she was being admitted to a Baltimore hospital on the very day, December 10, 1931, that the Nobel Peace Prize was being awarded to her in Oslo. She died in 1935.