John Cary in partnership with his brother William were one of the foremost London map and globe sellers of the late 18th and early 19th centuries. They built up a thriving and prosperous business, both as instrument makers and map publishers. Their first globes were published in 1791 and they were soon producing globes at four different diameters. George and John Cary, sons of John Cary Senior (d. 1835), continued the family globe-making business started by John and William Cary in 1791. Together with the firms of Newton and Bardin, globes made by the Carys accounted for the majority of globes produced in England during the early 19th Century (see 'The World in Your Hands', Exhibition Catalogue, London, Christie's, 1994, pp. 64-5).