The history of the Jews in Armenia is one of the Jewish communities in the Caucasus region. There is evidence of Jewish settlement in the Armenian Highlands dating as early 1st century BC. There are historical records that attest to the presence of Jews in pagan Armenia, before the spread of Christianity in the region by St. Gregory the Illuminator in 301 AD. Early medieval Armenian historians, such as 5th century historian Moses Khorenatsi, held that during the conquest of Armenian King Tigranes the Great (95–55 BC) he brought with him 10,000 Jewish captives to the ancient Kingdom of Armenia (which encompassed what is commonly known as Greater Armenia) when he retreated from Judea, because of the Roman attack on Armenia in 69 BC. Tigranes II invaded Syria, and probably northern Israel as well. A large Jewish population was settled in Armenia from the 1st century BC. One city in particular, Vartkesavan, became an important commercial center. Like the rest of Armenia's population, they suffered the consequences of regional powers trying to divide and conquer the country. By 360–370 AD, there was a massive increase in Jewish Hellenistic immigration into Armenia; many Armenian towns became predominately Jewish. After the conquest of Armenia in the 4th century AD by the Sassanid King Shapur II, he deported thousands of Jewish families from Persian Armenia and resettled them at Isfahan in modern Iran. In 1912 the archaeologist Nikolai Marr announced the discovery in 1910 of a tombstone in the village of Yeghegis that carried a Hebrew inscription. In 1996 investigations at Yeghegis, in Armenia's province of Vayotz Dzor, discovered the remains of a medieval Jewish cemetery from a previously unknown Jewish community. In 2000, a team from the Hebrew University of Jerusalem excavated on the southern side of the Yeghegis river, opposite the village, a Jewish cemetery with 40 gravestones with Hebrew inscriptions dating between 1266 and 1497. One non-Hebrew word in the inscriptions may indicate the origin of the community.