Question: Which man, Joe Manganiello or Richard G. Hovannisian,  is known mainly for his four-volume history of the First Republic of Armenia?
Sentence (from "Richard G. Hovannisian"): Richard Gable Hovannisian (Armenian: Ռիչարդ Հովհաննիսյան , born November 9, 1932) is an Armenian American historian and professor emeritus at the University of California, Los Angeles.
Relevant evidence: Yes