Apparently, this user prefers to keep an air of mystery about them.
7 What was the size of surface of a cereal crop needed per man per year during the Dark Ages in Western Europe? nov 2 '14
3 What historical conditions (culture, technology, events, etc.) contributed to China's current lead in population? nov 28 '14
2 What were the advantages and disadvantages of Mongolian cavalry (compared to European cavalry)? feb 10 '14