Quite a few “polka” things came from the ecu polka trend from the 1840’s, such as the polka hat and polka jacket, but only the polka dot (plus the dance itself) seems to have trapped all-around. The modern phrase “Polka Dot” comes from the polka dance trend that swept by https://cesarligfb.getblogs.net/61693030/the-fact-about-polkadot-lucky-charms-bar-that-no-one-is-suggesting