Original: Przystanek Woodstock (Polish for "Woodstock Bus Stop"; English-language materials often refer simply to the Woodstock Festival) is an annual free rock music festival in Poland, inspired by and named for the Woodstock Festival, that has taken place since 1995. Since the 11th festival, its organizers have called Przystanek Woodstock "the biggest open-air festival in Europe".
Simplified: The festival is named for and was inspired by the Woodstock Festival (Przystanek Woodstock is Polish for Woodstock Gathering).