King Neptune

Historical marker location:

6455 IL-146, Anna, Illinois

( Marker is on Illinois Route 146 east of McCloud Loop, on the right when traveling east.)

Marker installed: 2019

1942-1950.

Illinois was the first state in the country to ratify the 13th Amendment to the U.S. Constitution, which abolished slavery. The amendment was ratified by Illinois on February 1, 1865, before it was ratified by any other state.