Complex sentence: The German Workers'Party (DAP), founded on 5 January 1919, was the short-lived antecedent of the National Socialist German Workers' Party (NSDAP; Nazi Party).
Split into simpler sentences: The German Workers'Party (DAP) was founded on 5 January 1919. It was the short-lived antecedent of the National Socialist German Workers' Party (NSDAP; Nazi Party).