<P> The team name was officially changed to Washington Senators around the time of Clark Griffith's death . It was not until 1959 that the word "Senators" first appeared on team shirts . "Nats" continued to be used by space - saving headline writers, even for the 1961 expansion team, which was never officially known as "Nationals ." </P> <P> The current "Nationals" and "Nats" names were revived in 2005, when the Montreal Expos relocated to Washington to become the Nationals . </P> <P> The name "Twins" was derived from the popular name of the region, the Twin Cities . The NBA's Minneapolis Lakers had re-located to Los Angeles in 1960 due to poor attendance which was believed to have been caused in part by the reluctance of fans in St. Paul to support the team . Griffith was determined not to alienate fans in either city by naming the team after one city or the other, so his desire was to name the team the "Twin Cities Twins", however MLB objected . Griffith therefore named the team the Minnesota Twins . However, the team was allowed to keep its original "TC" (for Twin Cities) insignia for its caps . The team's logo shows two men, one in a Minneapolis Millers uniform and one in a St. Paul Saints uniform, shaking hands across the Mississippi River within an outline of the state of Minnesota . The "TC" remained on the Twins' caps until 1987, when they adopted new uniforms . By this time, the team felt it was established enough to put an "M" on its cap without having St. Paul fans think it stood for Minneapolis . The "TC" logo was moved to a sleeve on the jerseys, and occasionally appeared as an alternate cap design . Both the "TC" and "Minnie & Paul" logos remain the team's primary insignia . As of 2010, the "TC" logo has been reinstated on the cap as their logo . </P> <P> The Twins were eagerly greeted in Minnesota when they arrived in 1961 . They brought a nucleus of talented players: Harmon Killebrew, Bob Allison, Camilo Pascual, Zoilo Versalles, Jim Kaat, Earl Battey, and Lenny Green . Tony Oliva, who would go on to win American League batting championships in 1964, 1965 and 1971, made his major league debut in 1962 . That year, the Twins won 91 games, the most by the franchise since 1933 . Behind Mudcat Grant's 21 victories, Versalles' A.L. MVP season and Oliva's batting title, the Twins won 102 games and the American League Pennant in 1965, but they were defeated in the World Series by the Los Angeles Dodgers in seven games (behind the Series MVP, Sandy Koufax, who compiled a 2--1 record, including winning the seventh game). </P>

What does tc on the minnesota twins hats stand for