Historians have come up with a checklist of 50 icons or windows to illustrate 3,000 years of Dutch history. Ranging from the megalithic tombs in Drenthe (hunebeds) to the euro, the aim of the Canon van Nederland is to outline what important elements in the development of the Netherlands could be taught at both a primary and secondary level. The list takes the form of a flow chart through time and includes the first example of written Dutch, the Beemster polder and the Groningen natural gas fields, as well as events which shaped world history, such as the invention of printing and the two World Wars. At a time when the Dutch are trying to get to grips with their own identity, an understanding of Dutch history can help newcomers integrate into society, the commission which drew up the list said. But the list was in no way to be used to choose or create a national identity. That would be a ‘threatening, yes dangerous’ thought. ‘It is meant to help exchange ideas. It is for all the Dutch,’ said professor Frits van Oostrum who led the commission.