The following is a referenced list of notable Dutch people of Moroccan origin. Some of the people listed below are immigrants; others are of the second generation. Large-scale immigration to the Netherlands started on 14 May 1969, when the Netherlands and Morocco signed a treaty allowing recruitment of mostly unschooled labourers to work in Dutch mining, industry, construction and agriculture. Most guest workers intended to earn lots of money in a relatively short period and then return home. The fact that their number has risen to over 335,000 people, or over 2 percent of the Dutch population, proves many changed their minds. When the 1973 oil crisis hit the Netherlands, demand for labour greatly diminished and many guest workers lost their jobs.