In 1850, on the occasion of the jubilee of obtaining his doctor's degree, appeared in five volumes his "Vermischte Schriften" (Miscellaneous Writings), consisting of a collection of minor works published between 1800 and 1844. Savigny was hailed throughout Germany as "the great master" and founder of modern jurisprudence. In 1851 and 1853 he published the two volumes of his treatise on the law of obligations, "", mostly on what English-speaking lawyers consider as contract law. It was a supplement to his work on modern Roman law, in which he again argued for the necessity of the historical treatment of law.