Complex sentence: Ziereis was born on 13 August 1904 in Munich, Germany, where he spent 8 years in elementary school and then began as an apprentice and messenger boy in a department store.
Split into simpler sentences: Ziereis was born on 13 August 1904 in Munich, Germany. Ziereis spent 8 years in elementary school and then began as an apprentice and messenger boy in a department store.