The entire history of mankind, in regular installments. Not just European stuff, but the history of all mankind, from the Americas to Sub-Saharan Africa & Oceania
Historian, tried to be a philosopher but, I don't know how, cheerfulness was always breaking in. In previous lives, Wall Street Journal, Bloomberg News alumnus, for a while gainfully employed by the Chinese Communist Party (no kidding).
The number of free subscribers for A History of Mankind over time since it was added to the directory.