colonies began as separate and unique settlements or plantations. Further, efforts had failed to form a colonial union through the Albany Congress of 1754 led by Benjamin Franklin. The thirteen all had well-established systems of self-government and elections based on the Rights of Englishmen which they were determined to protect from imperial interference. Economic policy The British Empire at the time operated under the mercantile system, where all trade was concentrated inside the Empire, and trade with other empires was forbidden. The goal was to enrich Britain—its merchants and its government. Whether the policy was good for the colonists was not an issue in London, but Americans became increasingly restive with mercantilist policies. Mercantilism meant that the government and the merchants became partners with the goal of increasing political power and private wealth, to the exclusion of other empires. The government protected its merchants—and kept others out—by trade barriers, regulations, and subsidies to domestic industries in order to maximize exports from and minimize imports to the realm. The government had to fight smuggling—which became a favorite American technique in the 18th century to circumvent the restrictions on trading with the French, Spanish or Dutch. The tactic used by mercantilism was to run trade surpluses, so that gold and silver would pour into London. The government took its share through duties and taxes, with the remainder going to merchants in Britain. The government spent much of its revenue on a superb Royal Navy, which not only protected the British colonies but threatened the colonies of the other empires, and sometimes seized them. Thus the British Navy captured New Amsterdam (New York) in 1664. The colonies were captive markets for British industry, and the goal was to enrich the mother country. Colonial commodities were shipped on British ships to the mother country where Britain sold them to Europe reaping the benefits of the export trade. Finished goods were manufactured in Britain and sold in the colonies, or imported by Britain for retail to the colonies, profiting the mother country. Like other New World colonial empires, the British empire's commodity production was dependent on slave labor; as observed in 1720s Britain, "all this great increase in our treasure proceeds chiefly from the labour of negroes" in Britain's colonies. Britain implemented mercantilism by trying to block American trade with the French, Spanish, or Dutch empires using the Navigation Acts, which Americans avoided as often