From the first known school (in the year 2000 BC) to the Apple iPad and beyond, it's all in this interactive history of education timeline.
IWhen you click on an event additional information is available. According to this post there are 85 entries on the timeline and the plan is to continue to update it. To go directly to the timeline, brought to you by edhistory.com go to http://edhistory.com/.
Via Beth Dichter, Aki Puustinen