What was the cadbury star bar called in the 1970's?

In the 1970s, the Cadbury Star Bar was originally known as the "Marathon" bar in the UK. The name was changed to Star Bar in the early 1980s to avoid confusion with the American Snickers bar, which also featured a similar caramel and nougat combination. The Star Bar consists of a chewy nougat and caramel center, coated in Milk Chocolate.