Political map of Europe & the Mediterranean on 14 Jun 1866 (German Unification: Outbreak of the Austro-Prussian War), showing the following events: American Civil War ends; Gastein Convention gives Holstein to Austria and Schleswig, Kiel and Lauenburg to Prussia; Italy and Prussia form alliance against Austria; French withdrawal from Mexico; Prussia occupies Holstein; Federal Diet in Germany votes for mobilization against Prussian intervention in Holstein.