Junior high school time is more important. Generally, it is necessary to combine several historical events. You should first remember the time of the main events in each lesson. Then remember this event. You can't just remember the time, so you won't remember or forget it. If you know the combination of events and time, you can remember that, for example, Japan surrendered in 1945, before the financial crisis in 193 1. Remember time and events, combined with geography is not easy to forget. First of all, I understand. Blind back is useless.