Islam in the Scandinavian countries—Denmark, Norway, and Sweden—has a long history. There are evidences of contacts between Scandinavia and the Muslim world at least since the Middle Ages. The presence of Muslims in Scandinavia is however of a later date and more established from the 1950s, when immigrants arrived, mainly due to the needs in the labor markets; they successively established congregations and mosques, as they realized that they were to stay in their new countries. Following this period, Muslim migrants have arrived due to geopolitical factors, such as war, which have increased the number of Muslims and their presence and visibility in public space and public debate, which in turn has affected the media image of Islam and Muslims and influenced research. The research on Islam and Muslims has a long history in Scandinavia as well. With the increase of Muslim inhabitants in Scandinavian countries, scholarly interests have also related more to the present and to the study of their own Muslim populations, as well as case studies related to Islamophobia, media images, Muslims in the school systems and labor market, and specific incidents, such as the cartoon crisis and its aftermath.