The English adjective "Netherlandish", meaning "from the Low Countries", derived directly from the Dutch adjective "Nederlands". It is typically used in reference to paintings or music produced anywhere in the Low Countries during the 15th and early 16th century, which are collectively called Early Netherlandish painting (, "Flemish primitives" — also common in English before the mid 20th century), or (regarding music) the Netherlandish School. Later art and artists from the southern Catholic provinces of the Low Countries are usually called Flemish and those from the northern Protestant provinces Dutch, but art historians sometimes use "Netherlandish art" for art of the Low Countries produced before 1830, i.e., until the secession of Belgium from the Netherlands