- Slides: 7
USII. 5 a Early 20 th Century Transportation, Communication, Electrification The student will demonstrate knowledge of the social, economic, and technological changes of the early twentieth century by a) explaining how developments in transportation (including the use of the automobile), communication, and electrification changed American life.
How was social and economic life in the early twentieth century different from that of the late nineteenth century? Technology extended progress into all areas of American life, including neglected rural areas.
Results of improved transportation brought by affordable automobiles • Greater mobility • Creation of jobs • Growth of transportation-related industries (road construction, oil, steel, automobile) • Movement to suburban areas
Invention of the airplane • The Wright brothers
Use of the assembly line • Henry Ford
Communication changes • Increased availability of telephones • Development of the radio (Guglielmo Marconi) and broadcast industry (David Sarnoff) • Development of the movies Alexander Graham Bell (1880)
Ways electrification changed American life • Labor-saving products (e. g. , washing machines, electric stoves, water pumps) • Electric lighting • Entertainment (e. g. , radio) Thomas Edison