Final answer:
A political cartoon is a visual art that uses symbols, illustrations, and captions to convey a message or commentary on a newsworthy event. An important event related to German unification could be the fall of the Berlin Wall in 1989.
Step-by-step explanation:
A political cartoon is a form of visual art that uses symbols, illustrations, and captions to convey a message or commentary on a newsworthy event. In the case of German unification, an important event that could be depicted is the fall of the Berlin Wall in 1989. The cartoon could show the wall crumbling and people from East and West Germany coming together, symbolizing the reunification of the country. The caption for the cartoon could be: 'Breaking Barriers: The Unification of Germany'.