Polka give way to the two-step and new ragtime dances. Polka dancing enjoyed a resurgence in popularity after World War II, when many Polish refugees moved to the US, adopting this Bohemian style as a cultural dance. Polka dances are still held on a weekly basis across many parts of the US with significant populations of central European origin. It was also found in parts of South America. There are various styles of contemporary polka besides the original Czech dance, which is still the chief dance at any formal or countryside ball in the Czech Republic. One of the types found
Polka Dot Door Door" was Storytime. Storytime happened everyday on the show, regardless of what "day" it was. This included the activity of the host teaching and telling the time on a large, oversized blue (later pink) grandfather clock and featured the appearance of a small stuffed animal appropriately named "Storytime Mouse". Often Storytime Mouse would be engaged in some activity related to that day's story. Although Storytime happened once every day on "Polka Dot Door", it was often at different, unpredictable times during the program. Whatever activity was happening on the show would be interrupted by a sequence of chimes indicating that