How Britain used free trade to build an empire without colonies

Formal and Informal Empire in the 19th Century - Professor Richard Evans · 56:48 · Video: Gresham College · Watch at the source

In short: In the 19th century, the most powerful empire wasn't built solely through conquest, but through markets. Before the era of formal colonial administration, British industrial might and naval supremacy created an 'imperialism of free trade' that reshaped the globe.

Following the Napoleonic Wars, a new era of global influence emerged. Unlike the old mercantilist systems, which relied on trade monopolies between a colony and its mother country, the 19th century saw a shift toward free trade. This transition was driven by merchants and the decline of the economic imperatives that had sustained pre-industrial European empires. By the 1820s, European powers began opening their remaining colonies to foreign vessels, signaling a move away from closed economic loops.

Britain sat at the heart of this 'imperialism of free trade' from the end of the Napoleonic Wars until the 1880s. This period was defined by British industrial strength and an absolute command of the oceans. The Royal Navy, bolstered by the development of screw-driven, steam-powered vessels in the 1830s, allowed Britain to bypass the unpredictability of wind and weather. By the mid-1870s, the fleet exceeded 500 ships, including 61 ironclads, with a policy aimed at ensuring British naval strength surpassed any two rivals combined.

While European powers initially lacked a desire for new overseas possessions—preferring to avoid international conflicts following the 1815 Vienna Peace Settlement—the landscape was changing. Major non-European powers, such as the Chinese, Japanese, and Mughal states, struggled to match this European expansion. Eventually, economic interests and the pressures of existing settlements in places like Canada, South American, and India led European states to convert trading interests into formal imperial administrations.

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