since the devon rex breed first arose in 1959, cat breeders have been carefully fine-tuning this relatively new type of cat through selective breeding with british shorthairs and american shorthairs.

Please write the text above using proper case.
Since the Devon Rex breed first arose in 1959, cat breeders have been carefully fine-tuning this relatively new type of cat through selective breeding with British Shorthairs and American Shorthairs.