The History of the Ecumenical Councils. P. 2: Ecumenical Councils of the Sixth, Seventh and Eighth Centuries. Moscow, 2nd publ. 1897.
One of the first original histories of the Ecumenical Councils written in Russian was made by L. in the frames of the confessional approach, typical for all Spiritual Academies; it was polemically addressed to the ‘heresies’ of the first millennium C.E., and to the contemporary Catholic, and Protestant Churches and their historiographies, as well. Nonetheless, the principal novelty of the work was in the desire of the author to put the history of the Ecumenical Councils out of the narrow borders of historical dogmatic approach, and to set it in the broader context of the Byzantine, and Oriental history, particularly, in the context of the history of the theological schools of the fourth-fifth centuries, the development of which defined – on the author’s point of view – the prehistory and the course of the first three Ecumenical Councils, as well as their reception by contemporaries.