knuckleball pitchers
... that at least four different knuckleball pitchers have been credited as the inventor of the knuckleball, first used in the 1907 or 1908 baseball season?
... that at least four different <b id="mwFH8"><a href="./List_of_knuckleball_pitchers" id="mwFIA" rel="mw:WikiLink" title="List of knuckleball pitchers">knuckleball pitchers</a></b> have been credited as the inventor of the <a href="./Knuckleball" id="mwFIE" rel="mw:WikiLink" title="Knuckleball">knuckleball</a>, first used in the 1907 or 1908 <a href="./Baseball" id="mwFII" rel="mw:WikiLink" title="Baseball">baseball</a> season?