"Othello" by William Shakespeare is a tragedy written around 1603. Set in Venice and Cyprus, the play follows Moorish military commander Othello as his ensign Iago manipulates him into suspecting his wife Desdemona of infidelity. Through calculated deception involving a handkerchief and carefully staged encounters, Iago exploits Othello's trust while pursuing his own vengeful agenda. Considered one of Shakespeare's greatest works, this dark tragedy explores jealousy, manipulation, and the destructive power of suspicion.