The term Jewish Assimilation refers to a movement that began among Ashkenazi Jews in 18th century Europe, which encompasses outward social, cultural and genetic processes, as well as internal religious processes and events. It fostered assimilation and integration of the previously segregated European Jews into predominantly Christian Europe and later, the wider world. It was made legally possible because of the emancipation, which followed the Age of Enlightenment in Europe. Prior to that the laws of their host countries prohibited Jews from participating in various occupations, and from enjoying the privileges of citizenship.