Background: Montana was born to Joseph Clifford Montana Sr. (1932-2017) and Theresa Marie Bavuso Montana (1935-2004) in New Eagle, Pennsylvania, a borough of Washington County located in the western portion of the state. He grew up in the city of Monongahela, a coal mining town 25 miles (40 km) south of Pittsburgh. His maternal grandparents, Vincenzo "James" Bavuso and Josephine Savarino Bavuso, were both Italian immigrants.
Context: Montana was traded to the Kansas City Chiefs in April 1993. His trade, along with the free-agent signing of star Los Angeles Raiders running back Marcus Allen to the Chiefs, generated much media attention and excitement in Kansas City.  The Chiefs mailed three jerseys to Montana. One was number 3, his number from Notre Dame which the Chiefs had retired in honor of Hall of Fame kicker Jan Stenerud, who offered to let him wear it. Another was number 19, which he wore in youth football and also briefly in training camp of the 1979 season with San Francisco, and the third was number 16, which Hall of Fame quarterback Len Dawson offered to let Montana wear since the organization had retired it. Montana declined Dawson's and Stenerud's offers and wore 19 instead and signed a $10 million contract over three years.  Montana was injured for part of the 1993 season, but was still selected to his final Pro Bowl and led the Chiefs in two come-from-behind wins in the 1993 playoffs, reaching the AFC Championship Game where Kansas City lost to the Buffalo Bills. In their Wild Card win over the Pittsburgh Steelers, he threw a 7-yard fourth down touchdown pass to send the game into overtime. Then against the Houston Oilers, he led the team to 28 second half points, including three touchdown passes to earn the 29th fourth quarter comeback win of his career. Including their two playoff victories that year (the Chiefs only had one prior playoff win since 1970 Super Bowl IV), the 1993 Chiefs won 13 games, tying the franchise record for wins in a season.  Montana returned healthy to the Chiefs in 1994, starting all but two games. His highlights included a classic duel with John Elway (which Montana won, 31-28) on Monday Night Football, and a memorable game in week 2 when Montana played against his old team, the 49ers and Steve Young. In a much-anticipated match-up, Montana and the Chiefs prevailed and defeated the 49ers, 24-17. Montana led his team to a final playoff appearance in 1994.
Question: What happened in 1993?

Answer:
Montana was traded to the Kansas City Chiefs in April 1993.