John the baptist's question

Why did John have doubts?

(why would John, doubt the person, or mission of Jesus)?
Mat 11:2   Now when John had heard in the prison the works of Christ, he sent two of his disciples,
Mat 11:3   And said unto him, Art thou he that should come, or do we look for another?

 (When,just a short time ago John is said to have spoken these words)
Jhn 1:29 ¶ The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
Jhn 1:30   This is he of whom I said, After me cometh a man which is preferred before me: for he was before me 
Luk 1:41   And it came to pass, that, when Elisabeth heard the salutation of Mary, the babe leaped in her womb; and Elisabeth was filled with the Holy Ghost:
(was this an indication that John knew Jesus even in the womb, yet now doubts him in real life? )

 Why would anyone in that area doubt, did they not remember what had happened just a short 30 years before?

Mat 2:1 ¶ Now when Jesus was born in Bethlehem of Judaea in the days of Herod the king, behold, there came wise men from the east to Jerusalem,
Mat 2:2   Saying, Where is he that is born King of the Jews? for we have seen his star in the east, and are come to worship him.
Mat 2:7   Then Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared.  Mat 2:8   And he sent them to Bethlehem, and said, Go and search diligently for the young child; and when ye have found [him], bring me word again, that I may come and worship him also.
Mat 2:12   And being warned of God in a dream that they should not return to Herod, they departed into their own country another way. 
Mat 2:14   When he arose, he took the young child and his mother by night, and departed into Egypt:
Mat 2:16 ¶ Then Herod, when he saw that he was mocked of the wise men, was exceeding wroth, and sent forth, and slew all the children that were in Bethlehem, and in all the coasts thereof, from two years old and under, according to the time which he had diligently enquired of the wise men.

Did the Jews just forget all this happened, or did it happen?