city in Woodford County, Illinois, United States
Eureka was started in 1855. It was called Walnut Grove. The name was changed to Eureka because there was another Walnut Grove. No one agrees about who thought of the name Eureka. The name Eureka comes from a Greek word that means "I found it".
- "Oct 9". ww1.eureka.edu.
- Callary, Edward. 2009. Place Names of Illinois. Champaign: University of Illinois Press, p. 116.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 122.