價格：免費
檔案大小：8.8 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Was the light bulb invented after or before glasses? .To begin, one question is randomly drawn. If the player thinks that the event/question came before that you put on the timeline, the player places their card to the top of the last event. If they feel that the event was created after, it is placed to the below last event. And the game continues.
支援平台：iPhone, iPad