Bavaria and Württemberg form a southern customs unionJan 18, 1828Labels: Bavaria, W rttembergZollvereinBritannica
Prussia and Hesse-Darmstadt create a joint customs unionFeb 14, 1828Labels: Prussia, Hesse-DarmstadtPrussian HessianZollverein
Central German states attempt an anti-Prussian trade coalitionSep 24, 1828Labels: Central GermanCentral UnionZollverein
Zollverein treaties are concluded to unify tariff policyMar 22, 1833Labels: Zollverein TreatiesZollvereinBritannica
Zollverein formally begins with revenue-sharing rulesJan 1, 1834Labels: Zollverein, Revenue SharingZollvereinEBSCO
Baden, Nassau, and Hesse-Homburg join the ZollvereinDec 10, 1835Labels: Baden, NassauZollvereinLEO BW
Member states agree to currency coordination at DresdenJul 30, 1838Labels: Dresden ConventionZollvereinBritannica
Luxembourg joins the Zollverein by treaty ratificationJan 1, 1842Labels: Luxembourg, Treaty RatificationBritannicaZollverein
Brunswick joins, while a northern tax union persistsJan 1, 1842Labels: Brunswick, SteuervereinZollvereinSteuerverein
Prussia and Hanover sign treaty for Hanover’s accessionSep 7, 1851Labels: Prussia, HanoverSteuervereinZollverein
Hanover and Oldenburg enter, ending the SteuervereinJan 1, 1854Labels: Hanover, OldenburgSteuervereinZollverein
Zollverein and Austria coordinate currencies in the Vienna treatyJan 24, 1857Labels: Vienna Treaty, AustriaZollvereinBritannica
North German Confederation forms after the 1866 warJul 1, 1867Labels: North GermanBritannicaN German Treaty
Zollverein continuation treaty links North and South GermanyJul 8, 1867Labels: Continuation TreatyUS State HistBritannica
German Empire proclaimed, building on customs integrationJan 18, 1871Labels: German EmpireBritannicaNov Treaties