Tomato avocados, and squashes of all kinds (such as zucchini and pumpkins) are all botanically fruit, yet cooked as vegetables. This has led to legal dispute in the United States. In 1887, U.S. tariff laws that imposed a duty on vegetables, but not on fruit, caused the tomato's status to become a matter of legal importance. The U.S. Supreme Court settled this controversy on May 10, 1893, by declaring that the tomato is a vegetable, based on the popular definition that classifies vegetables by use—they are generally served with dinner and not dessert ("Nix v. Hedden" (149 U.S. 304)). The holding
Realization (tax) Realization (tax) Realization, for U.S. Federal income tax purposes, is a requirement in determining what must be included as income subject to taxation. It should not be confused with the separate concept of Recognition (tax). Realization is a trigger for calculating income taxation. It is one of the three principles for defining income under the seminal case in this area of tax law, "Commissioner v. Glenshaw Glass Co." In that case, the Supreme Court determined that income generally means "undeniable accessions to wealth, clearly realized, and over which the taxpayers have complete dominion." It is also discussed in "Helvering v.