In Italy, Austrian forces cross the Po River but are checked by French railway-borne reinforcements

Austrian troops crossed the Po River on a reconnaissance-in-force and captured several Piedmontese-held strong points at Casteggio and Montebello. French troops checked this advance and drove the Austrians back onto Montebello where fierce fighting was decided by a stream of French reinforcements arriving by railway train from Voghera. The Battle of Montebello lost, the Austrians withdrew back across the Po. (By John Osborne)