Heilbronn is a city in northern Baden-Württemberg, Germany. It is surrounded by Heilbronn District and, with approximately 123,000 residents, it is the sixth-largest city in the state.
The city on the Neckar is a former Imperial Free City and is the seat of Heilbronn District. Heilbronn is also the economic center of the Heilbronn-Franken region that includes most of northeast Baden-Württemberg. Furthermore, Heilbronn is known for its wine industry and is nicknamed Käthchenstadt, after Heinrich von Kleist's Das Käthchen von Heilbronn. https://en.wikipedia.org/wiki/Heilbronn
Sam and Joseph Twichell visited Heilbronn August 8, 1878 and is the subject of a burlesque in A Tramp Abroad