Complex sentence: Under Article XI, Section 11, of the Indiana constitution of 1816, Corydon was designated as the state capital of Indiana until 1825, when the seat of state government was moved to Indianapolis.
Split into simpler sentences: Under Article XI, Section 11, of the Indiana constitution of 1816, Corydon was designated as the state capital of Indiana until 1825. When the seat of state government was moved to Indianapolis.