The British Broadcasting Corporation (BBC) is a British public service broadcaster that serves as the primary national public broadcasting company of the United Kingdom, headquartered at Broadcasting House in London, England. Originally established in 1922 as the British Broadcasting Company, it evolved into its current state with its current name on 1 January 1927. It is the oldest and largest local and global broadcaster by stature and by number of employees, with a total staff of 21,000.