On this day (23 October) in 1976 Manchester City fans first did their ‘Viking Call’. The chant eventually evolved into ‘The best team in the land and all the world’ but for some time was basically City fans doing a C-iii-ttt-yy chant to the first part of the song. You can hear the song and find out its story in this talk I did earlier in 2022 (if you don’t want to watch the full talk, jump to about 23mins 40 seconds for the Viking Call story):
The origins of the “Best Team in the Land and all the World” chant
