The oldest mentioning of Haarlem dates from the 10th century. The name comes from “Haaro-heim” or “Harulahem”, which means ‘place, on sand covered with trees, higher than the others’. There was a stream called “De Beek”, dug from the peat grounds west of the river Spaarne as a drainage canal. Over the centuries the Beek was turned into an underground canal, as the city grew larger and the space was needed for construction. Over time it began to silt up and in the 19th century it was filled in. The location of the village was a good one: by the river Spaarne, and by a major road going south to north. By the 12th century it was a fortified town, and Haarlem became the residence of the Courts of Holland