sentences:  That building burned in 1907, and the fourth and current Warren County courthouse was completed on the same site in 1908 at a cost of $115,000.As the 19th century progressed, the United States government's Indian removal policy pushed Native American tribes west of the Mississippi River.In 1830, the Indian Removal Act was signed into law, and though that act did not directly address the Potawatomi people of Indiana, it led to several additional treaties that resulted in their removal.