Most European Muslims in 1950 lived in former colonial powers. [fact]
In 1950, some three hundred thousand Muslims lived in the twenty-seven countries that today make up the European Union (EU). Most Muslims at this time came from former European colonies. As a result, most lived in Britain or France, the two largest colonial powers in Muslim-majority regions during the nineteenth and twentieth centuries.
Green, Todd H, The Fear of Islam_ An Intro…, loc. 336