the 1960s also saw one of the strangest incidents in the history of the bundesliga. the licence of hertha bsc berlin was revoked for the 1964–65 season and the team relegated to the regionalliga berlin (regional leagues being the leagues below the bundesliga at the time) for breaking the league's player salary rules, partially in an attempt to entice players to berlin at the time of the construction of the berlin wall and high cold war tensions. the last place clubs, karlsruher sc and fc schalke 04, tried to avoid being demoted by laying claim to hertha's place. it was decided to suspend relegation for one season and increase the number of teams in the league from 16 to 18 to accommodate the two teams which would normally be promoted from the regionalligen. the politics of the cold war era led to a space being held open for a berlin side to replace hertha in a show of solidarity with the former capital city. what followed was the debacle of the promotion of tasmania 1900 berlin, which went on to the worst season in league history.