Sixty years of scholarly, literary and spiritual activity of Garegin Hovsepyan, friar of the Mother See, Catholicos of the Great House of Cilicia are exceptional. Through Garegin Hovsepyan's efforts unique manuscripts have been saved, and are kept today in the Matenadaran. He was the one to uncover Toros Roslin's art, and establish a number of branches of Armenian art history. He was the first to examine the ancient samples of Armenian domed temples, tomb monuments; and our today’s understanding of many of the architectural monuments destroyed during history is based exclusively on the information he has provided.
The presence and sermon of Garegin Hovsepyan in the suicide squad was crucial in the battle of Sardarapat.