Virtual History: Alternatives and Counterfactuals

Last week I bought Virtual History: Alternatives and Counterfactuals by Niall Ferguson, a counterfactual history book exploring several what if scenarios that would or would not change history.  Common examples of counterfactual history include what if the Normans lost the battle of Hastings or what if the D-day landings had failed.  I am still on the introduction and having read Ferguson's other works, I believe this will be better thought out than other counterfactual books that I have read.