Pascaerte van't Eylant St. Juan de Puerto Rico. nautical chart

The word portolan comes from the Italian adjective portolano, meaning "related to ports or harbors", or "a collection of sailing directions". Portolan charts are maps based on compass directions and estimated distances observed by the pilots at sea. They were first made in the 13th century in Italy, and later in Spain and Portugal where they considered to be state secrets. The English and Dutch found the description of Atlantic and Indian coastlines extremely valuable for their raiding, and later trading, ships. The oldest survived portolan is the Carta Pisana, dating from approximately 1296 and the oldest preserved Majorcan Portolan chart is the one made by Angelino Dulcert who produced a portolan in 1339.

In the late sixteenth century, French, English and Dutch merchant and privateer ships began attacking Spanish and Portuguese in West Indies coastal areas. They had bases in the places the Spanish could not conquer, such as the Lesser Antilles, the northern coast of South America, the mouth of the Orinoco, and the Atlantic Coast of Central America. They managed to establish their foot on St Kitts in 1624 and Barbados in 1626. When the Sugar Revolution took off, they brought in thousands of African slaves to work the fields and mills. English, Dutch, French and Spanish colonists, and in many cases their slaves from Africa first entered and then occupied the coast of The Guianas. The Dutch, allied with the Caribs of the Orinoco carried the fight against Spanish in all South America. The English of Jamaica established alliances with the Miskito Kingdom of modern-day Nicaragua and Honduras, and began logging on the coast of modern-day Belize. These interconnected commercial and diplomatic relations made up the Western Caribbean Zone which was in place in the early eighteenth century. West Indies gave names to several West India companies of the 17th and 18th centuries, including the Danish West India Company, the Dutch West India Company, the French West India Company, and the Swedish West India Company.