Dutch / Netherlands postage stamp from 1961 celebrating Driekoningen or Three kings Day. A Christian feast day that celebrates the revelation of God the Son as a human being in Jesus Christ. In the UK the feast is held on the eve of the night
King's Day on the canals in Amsterdam Koningsdag (Kings Day), Netherlands: April 26 This is a national holiday and a “free market” day, so everyone sells everything on the streets. There are games, concerts and parties on boats in the canals.