Karl Marx was born in the city of Trier, which is located in the Rhineland- Palatinate region of Germany. His exact birthplace is at Brückenstraße 10 in Trier, in a baroque-style house that is now preserved as the Karl Marx House museum. He was born there on May 5, 1818, and spent the first part of his life in Trier before moving elsewhere for his studies. This city is recognized as an important location for Marx's early life and legacy, and visitors can explore the museum dedicated to his life and works there today.