This document discusses the origins and definitions of nationalism. It begins by defining nationalism as a feeling of loyalty and pride in one's nation, and a desire for political independence. It then discusses how nationalism emerged in Europe in the late 18th and 19th centuries due to events like the French Revolution and Industrial Revolution, which challenged old power structures and led to the rise of nation-states. Nationalism further developed due to the growth of the middle class and their desire for more political rights and representation. The document also introduces the concept of the "imagined community" which underlies modern nationalist movements.