With the conclusion of WWI on November 11, 1918 and following the German Revolution of 1919, Expressionist architecture was fully active in the early years of the decade. The poor economic conditions had resulted in some of the most exciting buildings of the century, most of which were never realized, but were based on utopian and romantic nostalgia. Erich Mendelsohn created his Einstein Tower (1922) in Potsdam, and Hans Poelzig's Great Theater in Berlin for impresario Max Reinhardt, has been demolished since (1920, above).
The most ambitious event of the decade, dedicated to design and the decorative arts was certainly the International Exhibition of Modern Decorative and Industrial Arts, a World's fair, held in Paris in 1925 and initiated by the French government. It came to place France as the leading nation in matters of style and taste, restoring its lost power, by showcasing a new direction, later coined 'Art Deco.' This fair, featuring 15,000 exhibitors was highly influential and played a crucial role in spreading Art Moderne during the rest of the decade. Emile-Jacques Ruhmlann presented his blockbuster 'pavilion for a collector,' which featured a new luxurious style, where he demonstrated the power of mixing the traditional French with the avant-garde.
Le Corbusier founded the journal L'Esprit Nouveau, developed his 'Five Point of Architecture,' published his seminal book 'Towards a New Architecture,' and issued his first series of furniture, which created in collaboration with Charlotte Perriand and Pierre Jeanneret. Together with Pierre Chareau and others, he put the foundation to CIAM, the Congres Internationaux d'Architecture Moderne.
Mies van der Rohe concluded the decade with a powerful design for the German Pavilion at the 1919 International Exposition in Barcelona, where he put the foundation to the influential, minimalist, floating glass pavilion, for which, together with Lily Reich, he created the iconic Barcelona Chair. The pavilion came to represent the new, democratic, and progressive Weimar.
Let's hope that the 2020's will be as magical as the 1920s.