GOWNK'S DAY, OR THE FIRST OF APRIL, AND THE OPENING OF THE FORTH AND CLYDE NAVIGATION
... search was called a gowk and a fooL In England, a person foolishly imposed upon in the above-mentioned manner was called an April fool, and in France an April fish (Un 2mofooca dcAvril). The custom seems to have been very an- cient, and some antiquaries ...