A semi-simple algebra over F is either simple or the direct sum of simple algebras over F.

Darkness had no effect upon my fancy; and a churchyard was to me merely the receptacle of bodies deprived of life, which, from being the seat of beauty and strength, had become food for the worm.

A squatty guy with a wide-dark face came out of the door of the office building and waved and pointed.

According to everything I've ever read, it is the opposite: English is undergoing a unification of dialects, especially between American and British variëties.