In the New World, the British were one of the most powerful colonizers after defeating multiple European powers. They eventually established thirteen colonies, which later revolted against the British to form the United States of America. They captured Canada from the French in 1763 and controlled it until 1867 where they still have major influence. They later fought against France's emperor Napoleon from 1800 to 1815, and defeated him with a combined coalition in Waterloo.
Britain started the Industrial Revolution, a momentous movement which paved the way for the world's modernization. By the 19th century, the British held the largest empire in history, and were the strongest and most influential of all nations at this time.
The British can quickly get a powerful economy early in the game because they can create Settlers faster than other civilizations. Early in the game it is best to focus on gathering wood for the Manors so more Settlers will be spawned.
The British military is very powerful especially later on in the game because Musketeers and Hussars, two mainline and versatile units, can later on become upgraded to a Royal Guard level. British Home City Cards are also very useful because they focuses on its technology and the navy.
With several cards, British Grenadiers become one of the most powerful in the game.
British units speak a variant of Middle English whose pronunciation varies widely from unit to unit, sometimes being rather Chaucerian and at other times being more like Modern English. For example, the Hot Air Balloon say "ish" instead of "ee" when saying what would be "I" in Modern English (and likewise, the vowel in the word "right" varies between being short (so it rhymes with "hit") or longer as in Modern English "right"). Sometimes "th"s are pronounced as "d"s, and short e/a/uh sounds are in words that are no longer in Modern English.
Question marks (?) have been added where there is only a vague definition or translation or even less, and brackets immediately after the in-game dialogue sample give a rough pronunciation.
The British flag shown in the game is the King's Colours flag (used by Great Britain between 1606–1801).
According to early screenshots prior to the release of Age of Empires III and unused textures in the game files (british.ddt), the British flag in the game would be the Union Jack used by the United Kingdom between 1801–present.
The architecture style of the British post Exploration Age is mainly timber framing. This is historically inaccurate as this style was used predominantly in Europe and Britain while British colonies in North America used Georgian architecture instead.
In 1492 England was a modest agricultural nation recovering from the effects of long wars in which its kings attempted to retain inherited control of large parts of France. By the early eighteenth century the English ruled Great Britain, having united all the British Isles and established important colonies and outposts around the world. By the nineteenth century they controlled the world's largest empire and were the first nation to industrialize. These transformations were the result of their favorable position as an island nation, a high relative degree of personal and economic freedom, a large literate middle class, financial acumen, and a culture that encouraged action, progress, and achievement.
Critical to Britain's empire building was the rise of its military, especially its navy. Beginning as raiders and privateers preying on Spanish shipping from the New World, by 1588 their sea rogues were able to defeat the immense Spanish Armada in the English Channel. Recurring European naval wars established Royal Navy standards and traditions that allowed Britain to project its trade and empire to India, Australia, China, and North America. On land, the relatively small British army earned a reputation for disciplined musketry, an excellent officer corps, and occasionally brilliant generalship.
Britain established colonies on Caribbean islands and the North American continent in the early seventeenth century. The islands were the real prize at first, as sugar plantations proved enormously profitable. The small settlements in Virginia and Massachusetts expanded gradually as an accelerating flood of farmers and laborers came to North America looking for land, religious freedom, and opportunity. The colonies welcomed the poor and dispossessed not only from the home country and Ireland, but also from mainland Europe. The British colonies were bordered by the French in Canada, a small Spanish presence in Florida, and Native Americans across the mountains to the west. Victory in a middle eighteenth century world war with France, disputed from India to Europe to North America, made Canada British and opened the door to western expansion. One of Britain's few setbacks in this period was the loss of its American colonies in the revolution of 1776.