houses and street surfaces. The area, now known as Dunbar, is still highly segregated from the rest of Fort Myers. In 1907, the Seminole tribes' Federal Agency headquarters was relocated to Fort Myers. It remained there until 1913. In 1908, the Arcade Theater was constructed in Downtown Fort Myers. Originally a vaudeville house, Edison viewed films here for the first time with friends Henry Ford and Harvey Firestone. With the growth of the film industry, the Arcade Theatre was converted into a full movie house. A wall divided the stage in order to form two screening rooms. Changes in moviegoing habits since the late 20th century have led to the renovation of the theater for use again in live performance. It is now host to the Florida Repertory Theatre, a performing arts hall. During World War I, Edison became concerned about America's reliance on foreign supplies of rubber. He partnered with tire producer Harvey Firestone (of the Firestone Tire and Rubber Company) and Henry Ford (of the Ford Motor Company) to try to find a rubber tree or plant that could grow quickly in the United States. He sought one that would contain enough latex to support his research endeavor. In 1927, the three men contributed $25,000 each, and created the Edison Botanic Research Corporation in an attempt to find a solution to this problem. In 1928, the Edison Botanic Research Corporation laboratory was constructed. It was in Fort Myers that Edison conducted the majority of his research and planted exotic plants and trees. He sent results and sample rubber residues to West Orange, New Jersey, for further work at his large Thomas A. Edison "Invention Factory" (now preserved in the Thomas Edison National Historical Park). Through Edison's efforts, the royal palms lining Riverside Avenue (now McGregor Boulevard) were imported and planted. They inspired Fort Myers' nickname as "City of Palms". After testing around 17,000 plant samples, Edison eventually discovered a source in the goldenrod plant (Solidago leavenworthii). The rubber project was transferred to the United States Department of Agriculture five years later. In 1916, automobile magnate Ford purchased the home next to Edison's from Robert Smith of New York. Ford named his estate "the Mangoes". Ford's craftsman-style "bungalow" was built in 1911 by Smith. Ford, Firestone, and Edison were leaders in American industry and part of an exclusive group titled "the Millionaires' Club". The three men have been memorialized