This is a list of Indiana state historical markers. Interest in a statewide system of historical markers for the U.S. state of Indiana arose as the state prepared to celebrate its centenary in 1916; the Indiana Historical Commission observed the lack of a system of historical markers and memorials, and as a result of its work, many individuals, organizations, and local governments began to erect various types of memorials to commemorate historic sites. Increasing numbers of historical markers through the 1920s and 1930s prompted the Commission and its successor, the Indiana Historical Bureau, to develop statewide lists of markers, and it asked the General Assembly for authority to become involved in the placement of historical markers in order to improve the numbers, quality, and topics of