The Polka Dot is not only a pattern of filled circles, equally sized and closely arranged, leave the 'dot' out of the name and you have a dance and music genre. According to wikipedia it is still a popular genre of folk music in many European countries (The Netherlands is listed as well, although I don't really see that. Maybe I'm going to the wrong parties? Or the right ones depending on how you look at it).
Anyway, the name of the pattern comes from the dance, not because it really has anything to do with each other, but more because the time the pattern made, the Polka dance was very popular. The pattern lasted and gained popularity, the dance not so much.
New range of polka dot patterns that is in the making. This is the first, a girly business card which will be offered or several products and in a variety of colors.