 Complete the following phrase:  In 1950 the club became a founding member of the DDR Liga II, and in their second season captured a divisional title to win promotion to the top-flight DDR Oberliga for a single-season appearance. Renamed SC Motor Jena in 1954, they played their way back to the upper league by 1957. Jena won its first honours with the capture of the FDGB-Pokal in 1960 and followed up with the East German national title in 1963. The club was re-founded as FC Carl Zeiss Jena in January 1966, and became one of East Germanys focus centres for the development of players for the national side and a domit side in the DDR-Oberliga. They took two more national titles in 1968 and 1970, but finished in second place another half-dozen times to sides such as Vorwärts Berlin, Dynamo Dresden and 1. FC Magdeburg. They also captured East German Cups in 1972, 1974 and 1980, and appeared in the 