When did Britain become a superpower?
It still had colonies and businesses in Asia, Africa, and the Pacific too. After defeating Napoleonic France in 1815, Britain became the world's only superpower for more than a century. The empire became even larger. The empire continued to expand during the 19th century.
Is UK a superpower country?
Traditionally, superpowers are preeminent among the great powers. The term was first applied in 1944 during World War II to the United States, Great Britain, and the Soviet Union. During the Cold War, the British Empire dissolved, leaving the United States and the Soviet Union to dominate world affairs.