Explore "from cave paintings to the internet" on Google Maps
HistoryOfInformation.com has just put out a very powerful new map that lets you explore famous locations in history around the world. You can select a category, such as "art", "music", "telegraph" or dozens of others, then see pins placed on the map to show noteworthy events related to that category -- going back many thousands of years.
Check it out for yourself at www.historyofinformation.com/maps-simple/ or learn more about it over on Google Maps Mania.