can someone help me with a website or reference on creating a timeline tracking the major themes/paragism shifts in american history from the developement of sectionalism in the early 1800's throught the end of the prgressive era in the early 1900's

Answer 1

You'll find many timelines here.

http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=timeline+U.S.+history