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Shelbyville is located at the junction of Farm Road 417 and State Highway 87, seven miles southeast of Center in east central Shelby County. The area was settled in the 1820s by people who came from Tennessee, and the community was originally called Nashville. The community was the county seat of Shelby County. The Congress of the Republic of Texas changed its name to Shelbyville in 1837, for Isaac Shelby of Tennessee. Shelbyville was the scene of the beginning of the Regulator-Moderator War, and most of the major battles of the feud were fought in its vicinity. The town had a Republic of Texas post office established by 1843. In 1866 the county records were moved to the center of the county by night and hidden there. This led to a new county-seat designation that same year. In 1884 Shelbyville had a church, a school, a mill, two gins, and a population estimated at 150.