Tomatoes are fruits. But, according to law, they're vegetables. Here's the juicy backstory: In the 1800s, New York’s port taxed veggies, but not fruits. An importer wanting to cut costs went to court saying their tomatoes were fruits. The case went all the way to the Supreme Court, which ruled that, in “common language,” produce often served with meats or fish is a vegetable. So, the man had to pay tomato tax.