The county was namedMajor Francis L. Dade who died in 1835 in the battle that begansecond Seminole war. The following year a territorial county insoutheast Florida was named after him. The county seat was originallylocated on Indian Key located south of the mainland. Throughyears the large county of Dade has been altered by theof Palm Beach and Broward counties on the mainland. In 1844the county seat was moved to Miami. On March 3, 1845, Floridabecame the 27thState to join the United States of America. The remaining partthe northern Florida Keys was joined with the lower keys in 1866 andbecame a part of Monroe County. The City of Miamiwas incorporated in1896. There were around 15 homes there around the turn of thecentury. At the same time Julia Tuttle's efforts to bringrailroad to Dade County suceeded and by 1920, the railroad had beenextended to the Keys. The name was changed fromMiami-Dade County in 1997 by the voters of the county. Theywanted the international recognition of Miami as well as Dade. If you have additionalinformation about Dade please share it with us. Contact me for