http://www.nisd.net/clark/ClarkLibrary/internet.htm Click on the Gale Database link on the right. Click on the Everything link, click on the Timelines link.
http://www.historychannel.com/
Use the Select a Century Resource.
http://www.npg.org.uk/education/facepack/1900.html
http://www.infoplease.com/millennium1.html
Pick your decade from the right
http://www.time.com/time/time100/index.html
find the people in your decade
http://www.decades.com/ on the right there
are links to each decade
http://library.thinkquest.org/26451/contents/timeline/time14.htm
Pick your decade
http://history1900s.about.com/library/weekly/aa110900a.htm