The document summarizes the history of the Iroquois County Courthouse in Watseka, Illinois from its construction in 1866 to renovations in 2014. It details the original construction and additions made in 1881, 1889, 1927, and 1962. It also outlines the displays and collections housed in the historic building after it was converted to a county historical museum in 1967. The courthouse was added to the National Register of Historic Places in 1975 and has undergone ongoing restoration efforts.