Since their initial meeting on December 8, 1924, the longest-standing rivalry in the NHL is the one between the Bruins and their Canadian archrival, the Montreal Canadiens, as these two teams have met 34 times in the NHL's Stanley Cup playoffs, with Montreal taking 18-straight playoff series from the Bruins between 1946 and 1987. Boston's local colleges also are very strong in hockey. Boston College and Boston University are always competitive and at the top of the college rankings, both competing in the Hockey East conference. In the past ten years, Boston College has won three national championships (2008, 2010 and 2012) and Boston University has won one (2009). BC and BU, along with the Northeastern Huskies, also of Hockey East, and the Harvard Crimson of ECAC Hockey, compete in the Beanpot, considered the most prestigious in-season collegiate hockey tournament. It is played on the first two Mondays of February at TD Garden, with the semifinal matchups rotating on a year-to-year basis. The Boston Game is thought to be the origin of American football, played by New England prep schools. In 1855, manufactured inflatable balls were introduced. These were much more regular in shape than the handmade balls of earlier times, making kicking and carrying more skillful. Two competing versions had evolved during this time; the "kicking game" which resembled soccer and the "running" or "carrying game" which resembled rugby union. hybrid of the two, known as the "Boston game", was played by a group known as the Oneida Football Club. The club, considered by some historians as the first formal football club in the United States, was formed in 1861 by schoolboys who played the "Boston game" on Boston Common. They played mostly among themselves early on; though they organized a team of non-members to play a game in November 1863, which the Oneidas won easily. The game caught the attention of the press, and the "Boston game" continued to grow throughout the 1860s. The first professional NFL franchise in the city was the Boston Bulldogs, who only played a single season (in 1929) since relocating from Pottsville, Pennsylvania. The Boston Braves were established in 1932, under the ownership of George Preston Marshall. At the time the team played in Braves Field, home of the Boston Braves baseball team in the National League. The following year, the club moved to Fenway Park, home of the American League's Boston Red Sox, whereupon owners changed the team's name to "Boston Redskins."