Did something unusual happen in 1978?

The first London Open was held in 1975 at Imperial College. In March the same year a permanent home for this and other Go events in London became available in the shape of the London Go Centre. This centre was opened with generous sponsorship thanks to the efforts of the great Iwamoto (9 dan), and was run until October 1978 by Stuart Dowsey and David Mitchell. It was a seven day a week centre for playing and teaching Go, a focus for Go publicity, and for the distribution of Go material. In the end it proved to be over-extended and was unable to attract enough members to be financially independent in the expensive London environment. During this period BGA membership was over 1000, boosted by the Go Centre, the Open Door television program on Go and a feature on Radio 4.

I know that Finland has a dan promotion list. Does any other European country have a list?