Simplify the following text for a Grade 7 native English-speaking person.
Original: VolapÃ 1\/4 k ( pronounced , Ë vÉ ' lÉ pÊ k , also Volapuk ) is a constructed language , created in 1879 â `` 1880 by Johann Martin Schleyer , a Roman Catholic priest in Baden , Germany .
Simplified: VolapÃ 1\/4 k is a constructed language created in 1880 by Johann Martin Schleyer .