Simplify the following text for a Grade 16 native English-speaking person.
Original: Twix was called Raider in Austria , Belgium , Denmark , Finland , France , Germany , Greece , Italy , Luxembourg , the Netherlands , Norway , Poland , Portugal , Spain , Sweden , and Switzerland for many years before its name was changed in 1991 ( 2000 in Finland , Denmark , Norway , Sweden and Turkey ) to match the international brand name .
Simplified: Twix was called Raider in Austria , Belgium , Denmark , Finland , France , Germany , Greece , Italy , Luxembourg , the Netherlands , Poland , Portugal , Spain , Sweden , Switzerland and Norway for many years before its name was changed in 1991 ( 2000 in Finland , Denmark , Norway , Sweden and Turkey ) .