This document provides an overview of utilitarianism including its definition, types, examples, origination, and historical background. Utilitarianism is defined as a doctrine where actions are right if they are useful, benefit the majority, and create the greatest happiness for the majority. The two main types are act utilitarianism, where an action is morally right if it produces the best results in a specific situation, and rule utilitarianism, where an action is right if it conforms to a rule that leads to the greatest good. The founder was Jeremy Bentham in 1789. Important classical utilitarian thinkers included Bentham and John Stuart Mill. Bentham proposed the "calculus of felicity" to