和数据挖掘关系远点，哈哈

Encyclopedia of World History：

Vol1：The Ancient World Prehistoric Eras to600 c.e

Vol2：The Expanding World 600 c.e. to 1449

Vol3：The First Global Age 1450 to 1749

Vol4：Age of Revolution and Empire 1750 to1899

Vol5：Crisis and Achievement 1900 to 1949

Vol6：The Contemporary World 1950 to the Present

2008年版