Gregorian chant, Founded by Pope Gregory l.. Gregorian chant is the central tradition of Western plainchant, a form of monophonic, unaccompanied sacred song in Latin (and occasionally Greek) of the Roman Catholic Church. Gregorian chant developed mainly in western and central Europe during the 9th and 10th centuries, with later additions and redactions. Although popular legend credits Pope Gregory I with inventing Gregorian chant, scholars believe that it arose from a later Carolingian synthesis of the Old Roman chant and Gallican chant. Gospel founded by rather more than one person, St. Matthew, St. Mark, St. Luke, and St. John (the four evangelists), started in the late 19th century. Gospel (Greek: εὐαγγέλιον; Latin: evangelium) originally meant the Christian message ("the gospel"), but in the 2nd century it came to be used also for the books in which the message was reported.[1] In this sense a gospel can be defined as a loose-knit, episodic narrative of the words and deeds of Jesus, culminating in his trial and death and concluding with various reports of his post-resurrection appearances.[2]
The gospels are a kind of bios, or ancient biography, meant to convince people that Jesus was a charismatic miracle-working holy man, providing examples for readers to emulate. As such, they present the Christian message of the second half of the first century AD, and modern biblical scholars are cautious of relying on the gospels uncritically as historical documents, though they provide a good idea of Jesus's public career; according to Graham Stanton, with the potential exception of the Apostle Paul, we "know far more about Jesus of Nazareth than about any first or second century Jewish or pagan religious teacher".EP Sanders claimed that the sources for Jesus are superior to the ones for Alexander the Great. Critical study on the Historical Jesus has largely failed to distinguish the original ideas of Jesus from those of the later Christian authors,and the focus of research has shifted to Jesus as remembered by his followers, and understanding the Gospels themselves.
Source: Wikipedia