1950s
1950s.org, 50'ies Folly, American Homes, Fifties Boulevard, Rewind the Fifties, The Literature and Culture of the American 1950s
1960s
Cuban Missile Crisis, Photographs, 1960s British Pop Culture, 1960s Flashback, 1968 Revisited, BBHQ: The Sixties Section, Birmingham 16th Street Baptist Church Bombing - 19, Chicago '68, Cielodrive.com, Digger Archives, Documents from the Women's Liberation Movemen, Free Speech Movement Archives
1970s
1970s Flashback, Feeling Retro, Stuck in the '70s, Super70s.com, The Bad Fads Museum, The Super Seventies Archive
1980s
'80s Karma, 1980s Flashback, 80's Timewarp, Brian's World - Land of the Eighties, I Love the 1980s, i80s.com, Retro Junk, RetroFun, The Breakfast Club: Eighties Nostalgia, The Eighties Club
Atomic Age
"On the beach" : Australia's nuclea, A Century of Science / Brookhaven National Lab, A Lovely Experiment, A Scientific Expedition to Amchitka Island, A-Bomb Archive, AAHM Gallery Tour - Birth of the Atomic Bomb Galle, Accelerating Cleanup: Paths to Closure, Aircraft Nuclear Propulsion - Introduction, All-Russian Scientific Research Institute of Exper, Alsos Digital Library for Nuclear Issues
Cold War
Bibliography, Directories, Documents, Journals, Maps and Atlases, Nuclear Weapons Issues, Personalities, Popular Culture, Regional, Research Centers
Cultural Events
1937 World's Fair in Paris, A Century of Progress International Exposition - C, Building the World of Tomorrow, ExpoArchive
Genocide
Conference on Ethnic Cleansing, Department of Holocaust and Genocide Studies, Encyclopedia.com - Genocide, Gardens of the Righteous Worldwide, Genocide by Jean-Paul Sartre, Genocide in Twentieth Century Far East Asia, Genocide Resources: Links, main index, Holocaust and Genocide Studies, Hungarian Ethnic Cleansing (Magyarization), The German Army and Genocide
Great Depression
1930s Great Depression Gallery, Michigan Historica, A New Deal for the Arts, Dust Bowl/Migrant Workers Bibliography, Great Myths of the Great Depression, Internet Modern History Sourcebook: The Depression, Main Causes of the Great Depression, New Deal Network: A Guide to the Great Depression , New Deal/WPA Art History, Off to See the Wizard, Sliding into the Great Depression
Holocaust
Arts, Camps, Education, Organizations, People, A Challenge to David Irving, A Miracle in Denmark, A Teacher's Guide to the Holocaust, AMCHA, America and the Holocaust, Analysis of the Holocaust, Anti-Semitism and Holocaust, CIVS : Commission for the Compensation of Victims , Courage to Care Exhibition, Cybrary of the Holocaust
People
Conversations with History, Grey Steel (J. C. Smuts), Kilroy Was Here, Manfred von Richthofen, the Red Baron, biography, Ralph Bunche - An American Odyssey, The Great, The Famous and The Infamous, Time 100
Wars and Conflicts
Arab-Israeli Wars, Balkan Wars, Biafran War, By Region, Chaco War, Chinese Civil War, Falklands War, Futbol War, Grenada Invasion, Haiti - 1994
20th Century Archives
A site dedicated to making available "lost" and uncirculated articles, stories, and news of the 20th century. Categories include business, celebrities, the future, health, history, humor, music, radio, TV, quotes, and music.
America in the 1930s
Views the period through films, radio programs, literature, journalism, museums, exhibitions, architecture, art and other forms of cultural expression.
American Cultural History, 1940-1949
Examines the decade which was dominated by World War II. Includes historic events, art and architecture, fashion, literature, music and radio, theater, film, and television.
Berkeley Campaign Art
Images of political posters reflecting Berkeley's progressive-left community and culture from the 1970s onward.
California State University - Special Collections
Research about world's fairs from 1851-1940. includes photographs, videos and biographies.
Chronology of 1901
Describes events and people of that year. Categories include art, discoveries, labor, music, politics, and war.
Decades in 20th Century America
A collection of print and online sources for each decade, maintained by the Alameda County (CA) Library.
Do You Remember the 70's, 80's and 90s
Share your memories of what the 70's, 80's and 90's were really about. Read about what others remember and leave your own memories for others to read.
History: 1900s
Important events and people of the twentieth century from About.com
Internet History Group
Project aiming to exchange international historical information.
JN Ding Darling Foundation
Read chronicled politics, thoughts, and trends of the 20th century. Winner of two Pulitzer prizes for the drawing of editorial cartoons.
Streamliners: America's Lost Trains
A chronicle of the impact of the streamliner passenger rail system on American culture during the mid-twentieth century.
Teaching the 20th-Century History of the United St
Provides full-text access to the ERIC Digest of this name which deals with how to teach students about 20th Century American history.
The Golden Era
American popular culture from the 1930s-1940s. Information and forums covering vintage clothes, cars, music, movies, radio and history.
The Menzies Era
Australian popular culture from 1949 to 1972 including music, movies, books, and sport.
Twentieth Century
Killeen High School's World History course notes, with activities, links and lesson plan.
United Nations Organization Milestones
One-page timeline of events from the creation of the UN to today.
Year by Year: 1990-2004
Highlights the most important events of the century, time line, cultural events, and natural disasters. Includes a history quiz for various decades.