1893: William Hicks, charged with the sale of whiskey to an Indian in Yuma, pleaded in federal court that he’d actually been in California at the time of sale. The defense argument would have placed all of northern Yuma, including the Territorial Prison, in California.

1915: The 12th U.S. Infantry under Col. W.H. Sage at Nogales, Arizona, and Obregon troops attempting to drive Pancho Villa from Nogales, Sonora, fought a 30-minute battle across the international border. Later, both commanders met at the border and apologized.