Apart from North America, Tocqueville also made an observational tour of England, producing . In 1841 and 1846, he traveled to Algeria. His first travel inspired his , in which he criticized the French model of colonisation based on an assimilationist view, preferring instead the British model of indirect rule, which avoided mixing different populations together. He went as far as openly advocating racial segregation between the European colonists and the Arabs through the implementation of two different legislative systems (a half century before implementation of the 1881 Indigenous code based on religion).