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 "Alexander Khatisian"): During the establishment of First Republic of Armenia, he served as a member from the Armenian National Council of Tiflis to the Armenian National Council and later to the permanent executive committee selected by Armenian Congress of Eastern Armenians.
Relevant evidence: No