20th century research and practice of science led to advancement in the fields of communication, engineering, travel, medicine, and war. 20th century The 20th (twentieth) century was a century that began on January 1, 1901 and ended on December 31, 2000. It was the tenth and final century of the 2nd millennium. It is distinct from the century known as the 1900s which began on January 1, 1900 and ended on December 31, 1999. The 20th century was dominated by a chain of events that heralded significant changes in world history as to redefine the era: flu pandemic, World War I and
The 20th Century sponsored by Union Carbide ("The Discovery Company"), was renamed "The 21st Century". The show's focus changed to the future and to what humankind could look forward to. "The 21st Century" was cancelled after three seasons (its final broadcast was on 4 January 1970). The reason given was that the writers had run out of things to talk about. However, CBS may have wished to replace it with a more commercially successful program. The 20th Century The Twentieth Century was a documentary television program sponsored by the Prudential Insurance Company that ran on the CBS network from 20 October 1957 until