Answer
British Empire is the term coined by John Dee, a 16th-century English mathematician, astronomer, and astrologer. Dee used the term in his 1576 work, "General and Rare Memorials Pertaining to the Perfect Art of Navigation," to describe the vast territories under the rule of Queen Elizabeth I. The term "British Empire" subsequently became widely used to refer to the British Empire, which reached its peak in the 19th century.