All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Wednesday 1 January 1834 1
1834German Customs Union EstablishedThe Zollverein unites Prussia and other German statesThe Zollverein, a customs union led by Prussia, came into force on 1 January 1834, abolishing tariffs between most German states. It created a large internal free-trade area and laid economic groundwork for later German political unification. Several states that initially stayed out eventually joined.