"National Assembly" is a term that is either used to describe a country's legislature or the lower house of a national bicameral legislature. Although the concept of a national assembly is found throughout history, the modern concept and name largely derive from revolutionary France, according to Encyclopedia Britannica.
A national assembly is a legislative body comprised of popularly elected officials responsible for creating the laws that govern a nation. "National assembly" has been used to describe the ancient Athenian governing body and the British Parliament. The French Revolutionaries established the National Assembly in 1789, and it served as the chief law-making body of the land. Subsequently, republican movements throughout the world and especially in Francophone countries, adopted both the concept and terminology of the national assembly.