Mar Sabor and Mar Proth (real name Sabor or Sapir Proth or Prodh or Mar Abo) (c. 825) were two Assyrian Monks who Build & ruled Malabar Church. Kerala is first mentioned (as Keralaputra) in a 3rd-century-BC rock inscription left by the Mauryan emperor Asoka the Great. According to the first century annals of Pliny the Elder and the author of Periplus of the Erythraean sea, Muziris & Tarshish in Kerala could be reached in 14 days' time from the Red sea ports in Egyptian coast purely depending on the South West Monsoon winds. The Sangam works Puranaooru and Akananooru have many lines which speak of the Roman vessels and the Roman gold that used to come to the Kerala ports of the great Aryan kings in search of pepper and other spices, which had enormous demand in the West.
Mar Abo (Mar Sabor and Mar Proth) came from Middle East on invitation of Kollam King kuleshakara as an Authority for the Doctrine of Trinity on the Background of a pentecostal shivate Revival (focusing only the Holy spirit) of Advaida vedanta propounded by Adi shankara and were also instrumental in developing christian faith as an independent Religion. The start of the Malayalam era(ME) is associated with [koreni[Kollam]]. It is believed that the era was started by these ASyriac Saints who settled in KorukeNi kollam, near to the present Kollam. The ME is also referred as Kollavarsham.
Le Quien says that “these bishops were Chaldaeans and had come to Quilon soon after its foundation. They were men illustrious for their sanctity, and their memory was held sacred in the Malabar Church as St. Thomas tradition of Christianity was more vedic than thora or old testament. They constructed many churches in all places of christian Faith which was then a part of Vedic Hinduism (Brahma, putra&Shiva) as Christ then was revered only as putra (the virgin Born begotten son of Brahma and the only object of sacrifice) and was known only as vaishnavites.
During their lifetime, Christianity as a religion flourished especially in the kingdom of Diamper.”Mar Abo"s disciple kadamattathu Achan (kadamattam is a branch family from the paklomattam namboothiri community of Palyur who embraced Christ in the first century in the St. Thomas tradition of vaishnavism and also whom founded the famous Guruvayur temple during the 9th century Shivate revival where a section of the community following Adi Sankara joined the shiv ate revival) founded more than hundred Devi temples during his life time.
And it is believed that Mar abo, who is taking his eternal rest in Thevalakara marthamariam church located at Kollam is Mar Sabor. This St. Thomas Traditional Vedic church, which was renewed in Truth &spirit in 4th century, was built by Mar Sabor with orthodox canon, Liturgy and Rite after receiving the Tarsish-a-pali sasanam ,the earliest Historically available official sanction to built a place of worship in Kerala).Eye Medicine and witch craft was also two big contributions of Mar Abo to Kerala society.It is noted that Thevlakara where Mar Abo (Mar sabor) is buried is the root of Vaidyan Family.
Malayalam calendar (also known as Malayalam Era or Kollavarsham) is a solar Sidereal calendar used in the state of Kerala in South India. The era started in the year 825 AD. The origin of Kollam Era been dated as being 825 A.D. being the great convention in Kollam at the behest of raja kulshekara. The Malayalam Era named after Quilon began in 825 AD. Malayalam Era is called 'Kolla Varsham' after Kollam, because of the importance of Kollam in the 9th century A.D. It signified the independence of Malabar from the Cheraman Perumals. (Reference Travancore Manual page 244). King Kulashekra of Kollam, granted the copper plate grants in 825 A.D. to Mar S(abo)r Iso whom he invited to Kollam from Assyria (present persia & syria with Constantinople as the spiritual seat( the Byzantine/Eastern Roman Empire ), and transferring to the Tarsish Church and Vaishnavite nambuthiri community at Devalokakara(Thevalakara)at Tarshish near present day Quilon, lands near the city with hereditament of low caste(Tarshish (psalms 48)-a - palli). (Reference Travancore Manual page 244).. scholars believe that this conference was called by King Kulshekara for a clarity for the theology on Divinity of the Trinity and which finally resulted in a Major split and the division of Aryan Nambuthiri community and also the consecration of Thevalakara orthodox church with syrian litergy by Mar Abo following debate among the nambuthiri community on their belief between Nambuthiri's who believed in the st.thomas tradition of vaishnavism (christ as the putra and the only object of sacrifice) but continued in their vedic tradition including Sun Worship and the other section backing the version put forward by Adi Shankara in Advaita Vedanta in early 9th century that christ(isha) and shiva is one and the difference is only caused between Aramic and Pali language. However it should be particularly noted that kolla varsham resulted in the origin of Christianity in kerala as an individual religion outside vedic Vaishnavism as till that time only four vedic Aryan namboothiri families namely Kaliankal at Nillakal with a branch family at Devalokakara(near the ancient Koreni-Kollam port), paklomattam at palyoor, shankarapuri at niranam and kalli at kokkamangalam were allowed priesthood inside Christianity. The fact remains that the largest proportion of texts recovered are from Assyria, especially from the shattered remains of Assurbanipal's library at Nineveh, but also from the old Assyrian capital at Assur, principally excavated by German expeditions in the twentieth century. In recent years, it has become increasingly clear that the written medical traditions continued in Babylonia after the fall of Assyria as is evidenced particularly by finds in the far southern city of Uruk and in tablets from the Babylon-Sippar area now in the British Museum (many unpublished).