Othello is called The Moor of Venice:
Jose Tapiro y Baro, Circa 1855
Moor: (fr. the EMEDD - the Early Modern English Dictionary Database) 1550-1598. Among these definitions is the following: "a blacke Moore, or man of Ethiope … a Moore or blackeman, and it signifieth also the mulberie tree."
Internet Public Library's American Heritage Dictionary, offers the narrower modern definition of "Moor" as "1. a member of a Muslim people of mixed Berber and Arab descent, now living chiefly in northwest Africa. 2. One of the Muslims who invaded Spain in the 8th century and established a civilization in Andalusia that lasted until the late 15th century."
Janus: (from Wikipedia)
In ancient Roman religion and myth, Janus (Latin: Ianus) is the god of beginnings and transitions,[1] thence also of gates, doors, passages, endings and time. He is usually depicted as having two faces, since he looks to the future and to the past. The Romans named the month of January (Ianuarius) in his honor.
Janus presided over the beginning and ending of conflict, and hence war and peace. The doors of his temple were open in time of war, and closed to mark the peace. As a god of transitions, he had functions pertaining to birth and to journeys and exchange, and in his association with Portunus, a similar harbor and gateway god, he was concerned with travelling, trading and shipping.
Image from the Vatican Museum - Wikipedia file
Shakespeare's Othello and the POWER OF LANGUAGE: EDsite resources page
Silva Rhetoricae - A Forrest of Rhetoric