The Hyper History Page for even more time periods. Note the graphical display is linked to text essays on the topics shown. The Tsalagi Ring - A list of American Indian web pages, principally Cherokee. The Chronology of Industrial Events is an interesting timeline of inventions and technology. For the true Western History buff, check out the Wild West Magazine Home Page.
Articles are on-line.
A collection of History links, not by time, but by locality . By the University of California at Riverside. This High School Teacher's History Reference Site has a lot of material.