“Back in Chicago in June 1875, Sullivan worked briefly as a draftsman for a number of firms. One such job was for the recently formed firm of Johnston and Edelmann. It was John Edelmann who made the momentous introduction of Sullivan to his future partner, Dankmar Adler. In 1879 Sullivan joined Adler’s office and in May 1881, at the age of 24, became a partner in the firm of Adler and Sullivan, Architects. Their 14-year association produced more than 100 buildings, many of them landmarks in the history of American architecture.”