Othello's character during the play is first shown as a hero
             of war and a man of great pride and courage. The other main
             characters in the play all form their own opinions of him and as the
             play continues, his character begins to deteriorate and become less
             noble. Chronologically through the play Othello's character changes
             from a flawless military leader, to become a murderer. Also as the
             play progresses, the other characters in the play change their
             opinions of Othello which causes the plot to happen the way it did.
             Throughout the first act of the play, Othello was shown as
             many different characters depending on who was speaking. Iago
             complains of Othello's pride and "bombast circumstance" and is angered
             by the appointment of Cassio, and educated military theoretician of
             Florence to lieutenant, instead of himself. Although he knows Othello
             is a proud man, his open and trusting nature in the beginning of the
             play will be eroded by the conclusion of the plot. As Iago is
             speaking to Brabantio about Othello, he uses the term "white ewe" to
             represent Desdemona, and "black ram" when referring to Othello. By
             using these terms, it shows that he is trying to give a bad impression
             of Othello when he is speaking to the royal family in Venice, because
             Othello is a Moor or a Negro. Iago shows his black hatred for the
             Moor, and his jealousy of Cassio in his first soliloquy and also
             reveals his evil intentions. As the act continues and Othello is
             being searched for by a group of people, Iago attempts to incite
             Othello into anger against Brabantio, but Othello does not take the
             bait. He feels that he (Brabantio) may do his worst because Othello
             is assured that his military services to the government will outweigh
             Brabantio's complaints of him marrying Desdemona. These answers to
             Iago's persistence show that he is still a character of calmness and...