Timeline of the 20th century By ikeman Jan 1, 1900 Industrial Revolution (mass production), Renaissance Prior to 1900 Jan 1, 1907 Picasso Cubists Period: Jan 1, 1912 to Jan 1, 1941 Modernism Period: Jan 1, 1914 to Jan 1, 1918 World War 1 Jan 1, 1920 Blues+Jazz Jan 1, 1930 The Great Depression Period: Jan 1, 1939 to Jan 1, 1945 World War 2 Period: Jan 1, 1945 to Jan 1, 1991 The Cold War Jan 1, 1950 Rock+Beat Poetry Jan 1, 1960 Disco+Folk Jan 1, 1970 Punk Jan 1, 1980 Rap+Electro