In the field of religious education the nineteenth-century liberals solved this problem by the separation of state and church. In liberal countries religion is no longer taught in public schools. But the parents are free to send their children into denominational schools supported by religious communities.
However, the problem does not refer only to the teaching of religion and of certain theories of the natural sciences at variance with the Bible. It concerns even more the teaching of history from the impact of nationalism and chauvinism. But few people realize that the problem of impartiality and objectivity is no less present in dealing with the domestic aspects of history. The teacher's or the textbook author's own social philosophy colors the narrative. The more the treatment must be simplified and condensed in order to be comprehensible to the immature minds of children and adolescents, the worse are the effects.
<...> It is impossible to deal with any chapter of history without taking a definite stand on these controversial issues and the implied economic doctrines.