on November 1, 1604. Written during Shakespeare’s great tragic period, which also included the composition of Hamlet (1600), King Lear (1604–5), Macbeth (1606), and Antony and Cleopatra (1606–7), Othello is set against the backdrop of the wars between Venice and Turkey that raged in the latter part of the sixteenth century. Cyprus, which is the setting for most of the action, was a Venetian outpost attacked by the Turks in 1570 and conquered the following year. Shakespeare’s information on the Venetian-Turkish conflict probably derives from The History of the Turks by Richard Knolles, which was published in England in the autumn of 1603. The story of Othello is also derived from another source—an Italian prose tale written in 1565 by Giovanni Battista Giraldi Cinzio (usually referred to as Cinthio). The original story contains the bare bones of Shakespeare’s plot: a Moorish general is deceived by his ensign into believing his wife is unfaithful. To Cinthio’s story Shakespeare added supporting characters such as the rich young dupe Roderigo and the outraged and grief-stricken Brabanzio, Desdemona's father. Shakespeare compressed the action into the space of a few days and set it against the backdrop of military conflict. And, most memorably, he turned the ensign, a minor villain, into the arch-villain lago.

The question of Othello’s exact race is open to some debate. The word Moor now refers to the Islamic Arabic inhabitants of North Africa who conquered Spain in the eighth century, but the term was used rather broadly in the period and was sometimes applied to Africans from other regions. George Abbott, for example, in his A Brief Description of the Whole World of 1599, made distinctions between “blackish Moors” and “black Negroes”; a 1600 translation of John Leo’s The History and Description of Africa distinguishes “white or tawny Moors” of the Mediterranean coast of Africa from the “Negroes or black Moors” of the south. Othello’s darkness or blackness is alluded to many times in the play, but Shakespeare and other Elizabethans frequently described brunette or darker than average Europeans as black. The opposition of black and white imagery that runs throughout Othello is certainly a marker of difference between Othello and his European peers, but the difference is never quite so racially specific as a modern reader might imagine it to be.