Unstable Earth is Dr. 8-Bit's "ASB playground". It's just like OTL, but things can randomly appear, disappear, and travel through time. Also, things can randomly be swapped with other "Unstable" timelines (most often an Unstable version of Ahtobiton).
There has been one POD: three seconds before detonation, the Fat Man atomic bomb is transported to Rome in 10 AUC. Rome is bombed, and other Italian civilizations (e.g. Etruria) begin worshipping mushrooms, believing that the Romans had disrespected them, and thus the great Mushroom God destroyed their city.
This is a collaborative timeline - to join, leave a message on Dr. 8-Bit's talk page and you can begin editing when he gets back to you. Here is a member list: