Portal:The arts/Did you know/January, 2008

... that the core group of paintings in the Orleans Collection (pictured) remained together for two centuries in Prague, Stockholm, Rome, Paris and London?
... that one of the most gifted portrait painters of the 17th century is known as Cornelis Janssens, although he never used that name to sign his paintings?
... that the ideal length of a train melody is seven seconds?
... that Norwegian illustrator Harald Damsleth was convicted for treason in 1950, for having drawn Nazi propaganda posters during World War II?
... that David Rubinger was the first photographer to receive the Israel Prize?