Laura Jane Addams was an American settlement activist, reformer, social worker, sociologist, public administrator and author. She was an important leader in the history of social work and women's suffrage in the United States and advocated for world peace. She co-founded Chicago's Hull House, one of America's most famous settlement houses. In 1910, Addams was awarded an honorary master of arts degree from Yale University, becoming the first woman to receive an honorary degree from the school. In 1920, she was a co-founder of the American Civil Liberties Union.
In 1931, she became the first American woman to be awarded the Nobel Peace Prize, and is recognized as the founder of the social work profession in the United States. She was a radical pragmatist and the first woman "public philosopher" in the United States. When Addams died in 1935, she was the best-known female public figure in the United States.
In the Progressive Era, when presidents such as Theodore Roosevelt and Woodrow Wilson identified themselves as reformers and social activists, Addams was one of the most prominent reformers.