The answer is the past. It is because in order to learn, you need to realize the things you have done in the past and to make sure that the mistakes you had gone through in the past, will never repeat on the future as you are able to realize your faults and failures and it is a way of having guidance to keep in mind, so that it will not happen again.
<span>united states owes native ameicans A LOT of land. Also they owe them for all of the damage they cause them emotionally and physically. Like the seperation of families</span>