Question

What are the things which we can know from past?

Answer 1

Answer:

how not to regret on what we did wrong and live a happy life

Answer 2

Explanation:

other ways are digging things up, going to the museum to see the things of the past, reading a past newspaper, watching a video, looking at a picture of the past, from old friends and families, watching art, reading the past from the internet, from performances, finding a past from a teacher among many others.