This compromise not completely satisfying the Centre, which used its influence to effect a change, a new plan was therefore accepted. This introduced the denominational school, properly so-called, into the Constitution. According to this plan, the wish of parents would decide whether a school should be secular, mixed or denominational, the free choice by the parents being limited only by the requirements of well-ordered scholarship. The parties of the Left vigorously opposed this. The most serious objection they raised was that it would have as a consequence the necessity on the part of some states, such as Baden and Hesse, which had already introduced mixed schools legally, to renounce them again. A new compromise was thereupon arrived at, which under the new form became the final text. Denominational schools and lay schools would constitute exceptions and could not be established except when demanded by heads of families and conditioned by the requirements of well-ordered scholarship. As for the rest the educational questions must be regulated, the principles by an educational law for the Reich, the details by the legislation of the States. Thus _in principle the public school is mixed_. The public school is attended by all children no matter to what religion they belong, and religious instruction forms part of the regular school curriculum. (Article 149.) The imparting of religious instruction in the school must take place within the general framework of educational legislation. In other words, it is not the church but the State which gives instruction. It is the State that must take into its hands the organization of religious instruction. It is the State that decides what place religious instruction shall hold in its curriculum. It goes without saying, however, that, as to the content of religious instruction, this must be in agreement with the principles of the religious society concerned. No teacher, according to Article 149, par. 2, can be compelled to give religious instruction or to participate in religious exercises. In the same way no pupils are obliged to take religious instruction or to participate in ecclesiastical ceremonies and festivities. They may only be compelled to do so if the persons who have the right to decide on their religious education express the desire that they do so.