English Roger, the only things we do on April 1st is tell each other jokes. But company's start making jokes too, like the news sometimes has things like 'Scientists have successfully let a mummies hart beat'. It's a fun day, but some jokes are annoying Beside spiritual free days like Easter, Christmas, etc. We don't have much more holidays. Only 'Sinterklaas', which is the older version of Santa Claus which we don't celebrate here. Atleast not in a big scale, some family's do both Sinterklaas and Santa Claus but most people only do Sinterklaas or rarely only Santa Claus. We don't have days like Labor Day and Thanksgiving.