1609
In 1609 John William, Duke of Jülich-Cleves-Berg, died childless and the Elector of Brandenburg lays claim to inheritance.
1614
1614 Treaty of Xanten
1648
Signing of the Peace of Westphalia in Münster in 1648
1652
John Maurice, Prince of Nassau-Siegen, becomes governor in Cleves and Mark in 1652.
1672
1679
1679 Construction of the fortification in Wesel
1701
Prussia becomes a kingdom in 1701
1711
From 1711 Appointed magistrates are implemented in the towns
1719
1719 Administrative unification of the counties of Minden and Ravensberg
1723
1723 Initiation of the Prussian administration reform and the introduction of war chambers and domain chambers
1732
14,000 Salzburg refugees march through Westphalia in 1732
1741
1741 Royal Prussian Mill Regulation
1753
1753 Rural School Regulation Decree
1756
1756-1763 Seven Years' War
1759
1759 Battle of Minden
1763
1763 King Frederick II visits the western provinces
1774
1774 Construction of the first barracks in Hamm
1788
1788 The King visits the County of Mark for the promotion of trades
1789
1789 French Revolution
1803
1803 Principal Decree of the Imperial Deputation
1807
1807 Collapse of "Old Prussia" in the Napoleonic Wars, Kingdom of Westphalia
1813
1813-1815 Wars of Liberation, Prussian state reform
1815
1815 Establishment of the Prussian Province of Westphalia
1816
1816/17 Famine in Westphalia and the Rhineland
1817
1817 Protestant Union between Lutherans and Reformists
1820
1820 Establishment of the Higher Regional Court in Hamm
1825
1825 Marks-Haindorf’sche Stiftung
1826
1826 Westfälischer Provinziallandtag in Münster
1832
1832 Prussian semaphore telegraph between Berlin and the Rhineland
1834
Deutscher Zollverein
1837
1837-1840 Conflict over denominational mixed marriages (Berlin Convention)
1847
1847 Inauguration of the Cologne-Minden Railway and Bergisch-Märkische Railway
1848
1848/49 Revolutionary turmoil
1855
1855-57 Ravensberg Spinning Mill built in Bielefeld
1863
1863 Construction of the Westend work colony
1871
1871 Foundation of the Second German Reich
1871
„Kulturkampf“
1874
1874 Introduction of civil marriage
1878
1878-1890 Anti-Socialist Laws
1889 The Ruhr Miners' Strike
1883
1883-1888 Bismarck's social legislation
1886
1896/1902 Inauguration of the Emperor Wilhelm memorials in Porta Westfalica and Hohensyburg
1896
1896/1902 Inauguration of the Emperor Wilhelm memorials in Porta Westfalica and Hohensyburg
1898
1898-1904 Construction of the Zollern Colliery in Dortmund-Bövinghausen
1899
1899 Inauguration of the Henrichenburg ship lift
1902
1902 Founding of the Westphalian University of Münster
1906
1906 Reconstruction dispute and subsequent construction of Castle Altena
1908
1908 Inauguration of the Westphalian Provincial Museum
1918
1918 End of the monarchy
1920
1920 Reich Election Law and revolutionary turmoil
1923
1923-25 Ruhr occupation
1932
1932 "Preußenschlag" and removal of the democratic government of the Free State of Prussia
1933
1933 "Day of Potsdam", Hermann Göring becomes Prussian Prime Minister
1934
1934 Law on reconstruction of the Reich
1939
1939-1945 World War II
1945
Flight and Expulsion
1946
1946/47 Foundation of the State of North Rhine-Westphalia
1947
1947 Breakup of the State of Prussia
1981
1981 Extensive historical reappraisal of the theme of Prussia begins
1991
1991 Reburial of the coffins of Frederick William I and Frederick the Great to Potsdam