Spoken throughout the United Kingdom and, in 1992, by an estimated 456 million people throughout the world, English is second only to Mandarin Chinese in the number of speakers in the world. It is taught extensively as a second language and is used worldwide as a language of commerce, diplomacy, and scientific discourse. In northwestern Wales, Welsh, a form of Brythonic Celtic, is the first language of most of the inhabitants.
Approximately 26% of those living in Wales speak Welsh (up from 19% in 1991). Some 60,000 or so persons in western Scotland speak the Scottish form of Gaelic (down from 80,000 in 1991), and a few families in Northern Ireland speak Irish Gaelic. On the Isle of Man, the Manx variety of Celtic is used in official pronouncements; in the Channel Islands some persons still speak a Norman-French dialect. French remains the language of Jersey for official ceremonies.