I was in the Czech Republic last week and I had my first ever taste of ‘Kofola’, an Eastern Bloc rival to western cola drinks. Quote from Wikipedia:
“Kofola originated in the Czechoslovak Research Institute of Medicinal Plants in Prague in 1959, during research targeted at finding a possible use for surplus caffeine produced in the process of coffee roasting. The resulting dark-coloured, sweet-and-sour syrup Kofo became the main ingredient of a new soft drink named Kofola introduced in 1960. During the 1960s and 1970s Kofola became exceedingly popular in communist Czechoslovakia because it substituted for Western cola drinks like Coca-Cola or Pepsi, which were generally available since 1968 (Pepsi in 1974), but were expensive and considered as for high society.”
I can say it is quite delicious, The flavour is somewhere between familiar cola and dandelion & burdock.
https://en.m.wikipedia.org/wiki/Kofola
https://www.kofola.cz/en