The first documented act of mutual recognition between Bavaria and the United States was in 1833 when the first U.S. Consulate opened in the Kingdom of Bavaria, in Munich. Later in the 19th century other consulates opened in Augsburg, Nuremberg and Bamberg.
Taking hold in Central Europe and North America, Germans were increasingly immigrating into the US in search of opportunity and freedom. At this time, treaties conventions and agreements were being signed to regulate trade and commerce. This historical development shaped several areas of US-German foreign policy, namely trade, commerce, emigration, citizenship and naturalization.