The video What is History For?

The video "What is History For?" argues that history matters because it provides solutions to the problems of the present. Recall the statement "Those who don't know history won't be able to improve the present." Consider a recent event, either in your personal life or in the news. In a few sentences, describe a way that history might help inform that event and a strategy for how you could be conscious of presentism in applying the past to the present. Is this assignment basically asking me to consider a past event that is presently happening that we have changed our thoughts on? The word presentism is throwing me off. I know that it means a present way of thinking about past events (essentially) but I'm not sure how to apply it to this assignment