The history allows to have the list of the last 20 calculation games that have been made, the answers of the users are memorized and can be compared with the expected answers. It is thus possible to check the types of error and to focus on the difficulties encountered. The math games that are in this list can be done again by clicking the link restart.
There is no history yet, the history will appear as soon as you have made games. Here is the list of online math games available :