Rearrange the parts of the sentence in correct order.

P: It affords us a glimpse into acts, events, ideas, characters of the past, thus helping us to know more about those centuries gone by.

Q: It is almost as if such acts and ideas were meant to occur over and over again in different centuries though in a slightly different manner each time.

R: History is a record of past, especially in connection with human race.

S: When we trace history right from its beginning to the recent times, we cannot fail to notice that some events and characters have shown a repetitive quality.