Original sentence: At that time, the political term radical implied Marxism of some kind.During the 19th century, the term radical was used by progressive liberals to distance themselves from classical liberals, which explains why some  centre-left political parties today have radical in their names, such as Denmark's [Det Radikale Venstre]] (which literally translates into English as "radical left"), and France's Left Radical Party.In the 20th century, the definition of radical was revised in respons to the models of communism and the Soviet Union.In this context, it generally does not include democratic socialists, social democrats, liberals, nor others working in electoral politics, since the radical qualifier tends to denote a revolutionary fervor.Since then, the term far left has been used to describe persons or groups who hold radical egalitarian views and support radical social and political change.The most radical of the Jacobins were seated on the far left of the chamber.The origin of left as a political term is the seating arrangements in the French National Assembly during the French Revolution
Edited sentence: During the 19th century, the term radical was used by progressive liberals to distance themselves from classical liberals, which explains why some  centre-left political parties today have radical in their names.In the 20th century, the appraisal of what constituted being radical was revised by the models of communism and the Soviet Union.In this meaning, it generally does not include democratic socialists, social democrats, liberals, trade unionists, or those working in electoral politics, since the radical qualifier tends to denote a revolutionary fervor, though such a fervor may or may not include the use of political terrorism and guerrilla warfare as a strategy.Since then, the term far left has been used to describe persons or groups who hold radical egalitarian views and support radical social and political change by taking over or overthrowing the existing political system.The more a political group was describable as radical, the more it was understood to be pro-Marxist.The origin of left as a political term is from the seating arrangements in the French National Assembly during the French Revolution; the most radical of the Jacobins were seated on the far left of the chamber.The term can include an anarchistic hostility to most or all existing rulerships.The term radical left is included in the names of two social-liberal parties; Det Radikale Venstre in Denmark (which translates into English literally as "radical left"), and the Left Radical Party in France