• January 4 – The
New Apostolic Church, a Christian
premillennial church, is established in Hamburg. • January 29 – Established composer
Giacomo Meyerbeer presents the young
Jacques Offenbach to
Augusta of Saxe-Weimar-Eisenach, queen consort of Prussia. • February 8 – Signing of
Alvensleben Convention between Prussia and Russian Empire. • May 23 – The
General German Workers' Association (
Allgemeiner Deutscher Arbeiterverein), the first socialist workers party in Germany, is founded in Leipzig by
Ferdinand Lassalle. • August 1 –
Friedrich Bayer founds the chemical manufacturing company of
Bayer at
Barmen for the manufacture of dyestuffs. • August 27–29 –
Astronomische Gesellschaft in Heidelberg is founded, the world's second oldest astronomical society. • October 18 –
Befreiungshalle memorial above
Kelheim in Bavaria, designed by
Friedrich von Gärtner and completed by
Leo von Klenze, is inaugurated. • October 26–29 – The Grand Duchy of Baden, Kingdom of Bavaria, Kingdom of Hanover, Grand Duchy of Hesse, Kingdom of Prussia and Kingdom of Saxony are among the signatories to the Resolutions of the
Geneva International Conference leading to formation of the
International Red Cross and the German Red Cross. • November 18 – King
Christian IX of Denmark signs
the November Constitution, declaring
Schleswig to be part of Denmark, regarded by the
German Confederation as a violation of the
London Protocol of 1852, leading to the
Second Schleswig War of 1864. • undated • Teerfarbenfabrik Meister, Lucius & Co., predecessor of
Hoechst AG, founded at
Höchst (Frankfurt) for the manufacture of green dye from
coal tar. • Rubber goods company
Metzeler is founded in Munich. •
Max Schultze advances cell theory with the observation that animal and vegetable protoplasm are identical. == Births ==