To-may-to v. To-mah-to

Today I learned that back in 1893, the US Supreme Court declared that tomatoes are a vegetable. They reached this astounding conclusion based on the solid legal and scientific ground of...when tomatoes are utilized during a meal.

Even worse, there is no mention of a dissent, so one is left with the presumption that this was a unanimous decision. There are plenty of bad Supreme Court decisions out there, but I'm hard-pressed to think of one that's stupider than this.