There is a long history of trade and communication between the inhabitants of the northwest corner of Europe and other regions of the world. While the Vikings' raids and invasions caused fear throughout portions of Europe, the northerners eventually adopted the ideals of the rest of Europe as a result of Christianization. Several societies' social structures were impacted by the international Catholic church. Originally, priestly training was supplied via schools in the Nordic region. The Reformation significantly reduced the Church's worldwide power. Social authorities imposed a new educational paradigm in the 18th century: public education became required for all students. This public school promoted reading and deepened students' understanding of Christianity. Gradually, the notion surfaced that schools need to accomplish more than only disseminating Christian doctrine; the necessity of teacher education was acknowledged as an inevitable byproduct. The extension of ...