Time and Time Again

http://www.worldhistory-poster.com/en/
Over the last couple years, I’ve collected links to a number of sites that offer timeline-based browsing and thought I would share. Many of these sites are quite helpful for a number of areas of research, and help put many events into context and historical perspective:
From Cave Paintings to the Internet (Formerly From Gutenberg to the Internet)
http://historyofscience.com/G2I/timeline/
Timeline Index
http://www.timelineindex.com/content/home.php
World History Timeline Poster (Amazing)
http://www.worldhistory-poster.com/en/
Adventures in Philosophy: History of Philosophy Timeline
http://radicalacademy.com/diahistphil.htm