Complex sentence: In order to preserve the Aryan race, the Nazis introduced in 1935 the Nuremberg racial laws which forbade sexual relations and marriages between Germans and Jews, and later between Germans and Romani and Slavic peoples.
Split into simpler sentences: In order to preserve the Aryan race, the Nazis introduced the Nuremberg racial laws in 1935. These laws forbade sexual relations and marriages between Germans and Jews, and later between Germans and Romani and Slavic peoples.