A look back at national, state and local history from this week in years past.April 2, 1513 - Spanish explorer Juan Ponce de Leon spotted land which he thought was an island, naming it “La Florida.” He landed near present-day St. Augustine, Fla., and claimed it for Spain.Civil War history -• April 7, 1862 - The Battle of Shiloh ended. It was a two-day...