Compositions   1813: L'Italiana in Algeri 1813: Tancredi 1815: Il Barbieri di Siviglia 1817: La Cenerentola 1823: Semiramide 1829: Guglielmo Tell 1841: Stabat Mater	World Politics 1804: Napoleon becomes Emperor     1815: Battle of Waterloo (Napoleon defeated)     1837: Queen Victoria Queen of England   1848: Marx & Engels' Communist Manifesto