Dear friends,

on top of what Piya and Christine have offered, here is a list of
online resources on Buddhist history for the history-savvy people:

http://www.ship.edu/~cgboeree/buddhahist.html
http://www.simhas.org/timeline.html
http://www.pratyeka.org/buddhist-history/
http://www.horne28.freeserve.co.uk/buddate.htm

I make no guarantee as to their authenticity, read at your own risk.
An elaborated knowledge of Buddhist history is only possible from
readings from many sources.

metta,
Yong Peng