The European shorthair (or Celtic shorthair) is a breed of short-haired cat originating in Sweden. It's a recently recognised breed established to preserve the naturally occurring cats that have lived in European villages and cities for ages. Many people incorrectly refer to any stray cat as a European Shorthair.
European Shorthair has its counterparts in Great Britain (British Shorthair) and USA (American Shorthair), that have been bred much longer. The British Shorthair however was crossed with Persian Cat and selectively bred to become a cobbier cat with slightly shortened muzzle and thicker coat. It was confusing for Scandinavian breeders that BS was also called European Shorthair at that time, even though it looked differently. Felinological associations recognized both types of cats as a single breed so that they were judged by the same standards during cat shows. It was so until 1982 when FIFE registered the Scandinavian type of European Shorthair as a separate breed with its own standard.