Thinkorie is the great history quiz with constantly new questions. Test your knowledge in history and learn something new. The eras are divided into categories. One round will last 20 questions. You have two 50 / 50s and allowed to once skip a question. To solve it is a small text to learn. A quiz with learning factor! How have decided to split the category "20th century". As have taken place by the 1st and 2nd World War, many historical events. We have here the boundaries: 1900 - 1950; and from 1950 to 2000.