German Americans comprise a significant percentage of players in baseball history. Between 1871 and 1875 they made up 30% of players, and between 1900 and 1920 roughly 28% of players were of German heritage. Famous German American players include:   In total, there have been 44 German-born players who have played in Major League Baseball. Of those, 25 played in the Majors before 1933, and 11 players played between 1933 and 1999. During the latter time period, only one German-born player appeared in a Major League All-Star Game, Glenn Hubbard, a former second baseman and first base coach of the Atlanta Braves. Since 2000, eight German-born players have appeared in MLB, one of whom is Edwin Jackson. Jackson was an All-Star in 2009, and he threw a no-hitter on June 25, 2010. In 2018, he also tied a Major League record when he made a pitching appearance for his 13th Major League team. Brothers Klaus and Jürgen Helmig were the first German-developed players to sign a professional baseball contract. In 1956, after practicing daily and playing alongside military teams for several years, they received an offer from the Baltimore Orioles. The Orioles wanted to use this signing for press exposure, leading to the Helmig brothers receiving media attention upon their arrival in the United State. They were invited to the White House and visited the Annual Baseball Writers' Association dinner where they were special guests. Their baseball careers in the minor leagues did not last long, as they were released by the Orioles after a couple of months. Instead, they started playing for the Baltimore Elite Stars in the Negro leagues. They are credited with being two of the few white players to ever play in the Negro leagues. At the end of the 1956 summer, they returned to Germany, where they continued their baseball careers until 1978. They were elected into the in 2006. In 2000, Mitch Franke became the first player from the German baseball Bundesliga to sign a professional contract with an MLB organization, the Milwaukee Brewers. He never made it to the top, but he opened the doors for other Germans like pitcher Tim Henkenjohann, who played in the Minnesota Twins organization between 2002 and 2005, and catcher Simon Gühring, a player in the Milwaukee Brewers organization in 2002 and 2003. Since 2007, there have been multiple German-developed players that signed professional contracts. Most of them only played a few seasons with different minor league teams, before returning to Germany. They include:   In April 2013, outfielder Donald Lutz became the first German-developed player to play in Major League Baseball when he made his debut for the Cincinnati Reds.