★ About "history person 100"
"History person 100" is application to learn the name of 100 representative history people. It is learned the name of the history person happily while answering a problem of four.

★ Main function
● Challenge mode
You challenge it from level 1 sequentially, and a level rises when I pass it.
● Exercise mode
It is learned the name of the history person according to a level.
● Weak point conquest mode
The past practice result is recorded in money, silver, three copper ranks by a correct answer and an erroneous answer. Because an exercise is possible every kind of the medal, it is learned effectively.
● Mode according to the times
It is remembered a history person according to the times.