Before Brighton, class field theory was a recondite mystery known only to a few (in Britain, only a very few indeed); after Brighton, it was a standard tool of mathematics, available to any professional.
Bago Brighton, class field theory ay isang malalim na kilala lamang sa mga misteryo ng ilang mga (sa Britain, lamang ng isang napaka-ilang nga); matapos Brighton, ito ay isang standard na kasangkapan ng matematika, magagamit sa anumang mga propesyonal.