I recently heard about Histolines, which is attempting to be a crowdsourced database timeline for events, people, etc. and accounts for location. While an interesting concept, it isn’t quite there yet. Some of the functionality is (admittedly) incomplete, but what is present works fairly well. In the video below, creator Taras Skavinskyy (when seeking crowdfunding a few months ago) describes the project by saying, “Pretend that Facebook and Wikipedia had a child.” While it isn’t a subsitute for a history book, it coudl be an interesting new source for exploration. Check it out and let me know your thoughts.