20th century
(19th century - 20th century - 21st century - more centuries)
As a means of recording the passage of time, the 20th Century was that century which lasted from 1901-2000. Colloquially, this is often known as the nineteen hundreds, referring to the years 1900 to 1999.
The twentieth century was remarkable due to the technological, medical, social, ideological, and international innovations, and due to the rise of war, genocide, and democide on an unprecedented scale. The trends of mechanization of goods & services and networks of global communication which were begun in the 19th century continued at an ever increasing pace in the 20th. Virtually every aspect of life in virtually every human society changed in some fundamental way during the twentieth century.
Note: years before or after the twentieth century are in italics.
Important developments, events and achievements
Significant people
World Leaders
Scientists
Economics and Business
Aerospace Pioneers
Military Leaders
Religious Figures
Artists
Entertainers
Writers and Poets
Sports Figures
Notorious Figures
Decades and Years