Although I do not know that the 20's was widely referred to as the Age of Anxiety & Hope, it's not hard to understand why; the Great War had ended, women were gaining greater rights in society around the world, education was enabling the creation of mass culture, art and architecture were flourishing, modern consumerism was developing as well, and there was the widespread use of radios, early televisions, automobiles and the beginning of air transport.

Contrast this with the emergence of Communism in Russia, Fascism in Italy, economic hardships in France, Germany and Britain, issues over reparations and the treaty of Versailles, issues surrounding the role and place of the league of nations, all mixed in with the hope that the past war might really be the 'war to end all wars'.

Does that answer your question?