During the 7th century and during the greater parts of the Sriwijaya-Majapahit periods (9th-14th centuries), eastern Christians of the Antiochian Syrian tradition arrived, followed later by the Non-Chalcedonians (Armenians). Christianity was in Indonesia before Islam came to the Archipelago. However, the Christians disappeared from the Indonesian landscape and its historical record. It appears that the first Christian missionaries from Antioch did not ordain local Indonesian men to succeed them. After the last clergymen died, the local residents knew almost nothing of Orthodoxy, since the region was politically and geographically isolated. In the 11th century, an envoy of the Pope of Rome to Beijing, stopped over at the Pagarruyung Kingdom , West Sumatra and discovered some remnants of Christianity being practiced by local residents despite some three hundred years of isolation. From that early period until today, not one written record of Christianity survives, yet oral tradition preserved the names of three local bishops: Mar Yaballah, Mar Abdisho and Mar Denha. Most Indonesians do not know of these tenuous but deep Christian roots, and it should be stressed that it was Eastern Christianity that arrived to the island first.