In 1867, Carl Gustav Emil von Mannnerheim, Finnish soldier and statesman, was born.

CNN: Thursday,

In 1867, Carl Gustav Emil von Mannnerheim, Finnish soldier and statesman, born.

CNN: Wednesday,

One attempt at an explanation involves so-called Rossby Waves, named after the Swedish meteorologist Carl-Gustav Rossby whose research was published back in 1939.

BBC: Why, oh why, does it keep raining?