Background:
The term Barbary Coast or Berbery or Berber Coast, was the term Europeans used from the 16th to early 19th century to refer to much of the collective land of the Berber people.
The term Barbary Coast emphasizes the Berber coastal regions and cities throughout the middle and western coastal regions of North Africa – what is now modern nations of Morocco, Algeria, Tunisia, and Libya. The English term Barbary (and its European varieties: Barbaria, Berbérie, etc.) referred mainly to the entire Berber lands including non-coastal regions, deep into the African continent, as seen in European geographical and political maps published during the 17th–20th centuries.
The name derives from the Berber people of North Africa. In the West, the name commonly evoked the Barbary pirates and Barbary slave traders based on that coast—who attacked ships and coastal settlements in the Mediterranean Sea and eastern North Atlantic Ocean, and captured and traded slaves or goods from Europe, America and sub-Saharan Africa. These actions finally provoked the Barbary Wars of the early 19th century. The slaves and goods were being traded and sold throughout the Ottoman Empire or to the Europeans themselves.
Barbary was not always a unified political entity. From the 16th century onwards, it was divided into the political entities of the Regency of Algiers, Tunis, and Tripolitania (Tripoli). Major rulers petty monarchs during the times of the Barbary states\' plundering parties included the Pasha or Dey of Algiers, the Bey of Tunis and the Bey of Tripoli.
Before then, the territory was usually divided between Ifriqiya, Morocco, and a west-central Algerian state centered on Tlemcen or Tiaret. Powerful Berber dynasties such as the Almohads (12th century) and briefly thereafter the Hafsids, occasionally unified it for short periods. From a European perspective, Tripoli in modern-day Libya, was considered its capital or chief city—though Marrakesh in Morocco was the largest and most important Berber city at the time. Some saw Algiers in Algeria, or Tangiers in Morocco as the capital.
Purchase of Christian captives in the Barbary States.
The first United States military land action overseas, executed by the U.S. Marines and Navy, was the Battle of Derna, Tripoli, (a coastal town in modern eastern Libya) in April 1805. It formed part of an effort to destroy all of the Barbary pirates, to free American slaves in captivity, and to put an end to piracy acts between these warring tribes on the part of the Barbary states, which were themselves member states of the Ottoman Empire. The opening line of the Marines\' Hymn refers to this action: From the halls of Montezuma to the shores of Tripoli.... This was the first time the United States Marine Corps took part in offensive actions outside of the United States.
The word razzia is, via Italian and French, from Algerian Arabic ghaziya (غزية \"raiding\"), originally referring to slave raids conducted by Barbary pirates.

Gibson, John active 1750 - 1792
Gibson was an English cartographer, geographer, draughtsman and engraver. Recognized as an important late eighteenth-century British cartographer, a contemporary of Jacques-Nicolas Bellin and skilled engraver, spent most of his life in prison because of several debts, however, produced thousands of maps and its best-known work in 1758 was called the pocket atlas Atlas Minimus. He worked also for the Gentlemans Magazine for which engraved different decorative maps. He also published his own work in The Universal Magazine of Knowledge and Pleasure, The Universal Museum and The Universal Traveller.