The British Empire was the largest empire in history and, for over a century, was the foremost global power. It was a product of the European age of discovery, which began with the maritime explorations of the 15th century, that sparked the era of the European colonial empires.
As a result, its legacy is widespread, in legal and governmental systems, economic practice, militarily, educational systems, sports, and in the global spread of the English language. During the five decades following World War II, most of the territories of the Empire became independent. Many went on to join the Commonwealth of Nations, a free association of independent states.