Sweden experienced low levels of labor immigration after World War II until 1970 as the economy expanded rapidly. Labor immigrants mainly came from Nordic countries and other parts of Europe. A common Nordic labor market agreement in 1954 increased immigration from Finland. Push factors that drove emigration from Sweden included persecution, poverty and unemployment, while pull factors attracting immigrants included freedom, safety, and new opportunities in Sweden. Today, immigration has contributed to a more culturally diverse Sweden with a variety of foods, religions, languages, and traditions. Without immigration, Sweden would likely be more homogeneous with only Swedish traditions and culture.