Land Surveying History Hub is a place for land surveyors to discuss and share surveying history for education of future generations of surveyors. As a member of this Hub, you can contribute to the Surveying History Timeline and help Build land surveying time capsules. Contribute what your experience and knowledge to the first ever interactive timeline of land surveying history.
Truly insightful animated gif of the growth of the US territories and states. The only improvement I can think of is if there was a timeline control – watching the dates change while keeping track of map changes is almost impossible.
Wikipedia Commons cites this as the work of http://en.wikipedia.org/wiki/User:Golbez, who has also produced a similar work (with a slower timestep) for Canada: http://en.wikipedia.org/wiki/File:Canada_provinces_evolution.gif