This is an architecture style in 20s and 30s, characterized by sleek geometric or stylized forms​

Art Deco is a popular design style of the 1920s and '30s characterized especially by sleek geometric or stylized forms and by the use of man-made materials.

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.