3 witches tell the Scottish general Macbeth that he will be King of Scotland Encouraged by his wife, Macbeth kills the king, becomes the new king, and kills more people out of paranoia. Civil war erupts to overthrow Macbeth, resulting in more death.
Three witches make a prophecy that macbeth will become king but banquo wont, but banquo's kids will be. Macbeth is hesitant to kill the king but his wife convinces him to. After the killing of the king, Macbeth also kills banquo to make sure he doesnt know that Macbeth killed the king. After the murders, the guilt ridden couple slowly go mental. The king sees ghosts, and eventually Lady Macbeth kills herself. King Macbeth eventually gets killed, Banquos son becomes King.
I think that Hellen Keller was a very loud and outspoken person for someone her age and with her conditions. My thought about this is that it is what she uses to try and comunicate with other people to make sure that they would still notice her.