Every once and a while you find an app that does one very specific thing very well. Timestory is just such an app: It allows you to quickly visualize any timeline. This can be useful for viewing history in context, which makes it a great learning tool if you're, say, studying history. But Timestory is also useful for general planning. You can use it to visualize all the steps necessary for a longer term project, and even include multiple proposals on the same timeline.
Timestory is made by a single developer...