What is the historical implication shown in Othello?

Othello is a Moor (Blacks of north African descent and Muslim). He is a general in the Venetian army.

Ever since the Crusades, the European Christians had been fighting the Muslim armies, trying to regain the Holy Land. The Crusades were mostly failures, and throughout the Middle Ages and into the Renaissance, many wars were fought between Christians and Muslims. The Ottomon Empire controlled much of southeastern Europe, western Africa and North Africa during much of the 16th and 17th century, when this play was written (1603).

The Venetians viewed the island of Cyprus as a last stand against the Ottomon Turks, who had conquered many lands establishing the Ottomon Empire. Cyprus is an island in the eastern Mediterranean, south of Turkey. The Venetians established a military stronghold on the island of Cyprus, but in 1571, the Ottomon Turks attacked Cyprus and conquered it. The Ottomon period lasted until the late 1800s in Cyprus. In the play, Othello is sent to Cyprus to command the Venetian army and defend Cyprus.

Othello is thought to have been based on an Italian story by an Italian writer named Cinthio. Since the play was written in 1603, this would have been after the invasion of Cyprus but during the Ottomon Period in Cyprian history.