article: 1840s
links: John Russell, 1st Earl Russell Mexican-American War Spain Prussia William Henry Harrison California Gold Rush France 1834 1896 Qajar dynasty 1848 Edvard Grieg Frederick William IV of Prussia Treaty of Nanking Pope Gregory XVI Louis-Philippe of France Ottoman Empire Shah Edgar Allan Poe United Kingdom of Great Britain and Ireland United States Ferdinand I of Austria John Tyler Pope Pius IX July Monarchy The Communist Manifesto Robert Peel Isabella II Victoria of the United Kingdom Irish Potato Famine European Revolutions of 1848 Austria Nicholas I of Russia James Knox Polk Klemens Wenzel von Metternich Austria-Hungary China Martin Van Buren Russia 1810 United Kingdom William Lamb, 2nd Viscount Melbourne Wyatt Earp