Original sentence: In 1956 Birmingham City became the first English club side to compete in Europe when they took part in the 1955-58 Inter-Cities Fairs Cup via invitation.Some cities, including London, chose to enter teams comprising players from more than one club; Aston Villa decided not to supply players to a combined team, leaving the Blues as the city of Birmingham's representative.The rule at the time specified one team per city invited.They won their only major silverware to date in 1963 when they lifted the League Cup beating local rivals Aston Villa 3-1 on aggregate
Edited sentence: Aston Villa decided not to combine their team with Birmingham City, as other teams in the competition had, leaving the Blues as the only representative from the city.In 1956 Blues became the first English club side to compete in Europe as they took part in the 1955-58 Inter-Cities Fairs Cup via invitation.They won their only silverware to date in 1963 when they lifted the League Cup (prior to it becoming a major trophy) beating local rivals Aston Villa 3-1 on aggregate