Energy and Buildings in the 20th Century; a project of the U.S. Department of Energy's Efficiency and Renewable Energy program.

Bringing you a prosperous future where energy is clean, abundant, reliable, and affordable

1920-1929

1920's
Gas Stations and Motor Courts
Everywhere, USA

All across the country gas stations and motor courts answered the call of a nation "on the road." The same prefabricated steel and glass materials used to make cars were also being used to build this style of curbside architecture.

1920's Gas Stations and Motor Courts, Everywhere, USA

Harbin's Tourist Court post card

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1922 Air conditioning with downward supply in Grauman's
Metropolitan Theater, Los Angeles

1925 Five million cars mass produced

1926 Liquid-fueled rocket

1927 The first pop-up toaster is designed in the U.S.

1928 Fleming discovers penicillin, a cure for infections

1929 Stock market crash on Wall Street

1929 Kitchens with continuous work surfaces

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