This book compiles and analyzes data from "Zenkoku Daigaku Nyushi Mondai Seikai" (Answers to University Entrance Exam Questions) published by Obunsha, focusing on "chronological" questions. It selects and organizes essential historical periods for world history study, categorized by era and region. Table of Contents: 1. Ancient Orient and Mediterranean World (BCE - late 5th century) 2. South and East Asia 1 (BCE - early 10th century) 3. Medieval Europe (late 5th century - late 15th century) 4. Islamic World (early 7th century - late 18th century) 5. South and East Asia 2 (early 10th century - late 18th century) 6. Modern Europe 1 (late 15th century - late 17th century) 7. Modern Europe 2 (late 17th century - early 19th century) 8. The World in the 19th Century (1814-1899) 9. The World in the 20th Century (1900-1945) 10. The Contemporary World (1944-2000) Appendix: Most Frequent Chronological Events and Items Final Check