title: USS Lexington (CV-2)
context: Christened by Helen Rebecca Roosevelt, the wife of the Assistant Secretary of the Navy, Theodore Douglas Robinson, Lexington was launched on 3 October 1925. She was commissioned on 14 December 1927 with Captain Albert Marshall in command.[2] By 1942, the ship had a crew of 100 officers and 1,840 enlisted men and an aviation group totaling 141 officers and 710 enlisted men.[6]
question: When was USS Lexington (CV-2) built?
answers: 3 October 1925