Question: What year does  the current version of the Constitution whose creation was sponsored by Justo José de Urquiz date from?
Sentence (from "Battle of Caseros"): The Battle of Caseros was fought near the town of Caseros, Buenos Aires Province, Argentina, on 3 February 1852, between the Army of Buenos Aires commanded by Juan Manuel de Rosas and the Grand Army ("Ejército Grande") led by Justo José de Urquiza.
Relevant evidence: No