History Timeline
TIMLEG
歷史日曆-在這一歷史和測驗中的今天
Alexandru C. Ene
Ginkgo: History of the World
Ginkgo Academy - Learning the smart way
World History
Sana Edutech
世界历史测试游戏
Quizzes by Peaksel
History Trivia Quiz
Trela Apps
The History of Everything
2D, Inc
BBC History Magazine
Immediate Media Co
General Knowledge Quiz
History Game
Habapps