Another nice visualization, this time it is a mix of history and Wikipedia posts. Made by Gareth Lloyd and using geotagged entries on Wikipedia. This video shows history as it appears in Wikipedia. Most of the action happens in Europe and US, obviously it doesn't mean that nothing happened in other parts of the world rather that in Wikipedia, Europe and US, are more relevant than other places. Each spark has its own color which represents different fields.
He also provides his original data in Google Docs