Why do scholars think Mark was written first?
Herein, why is Mark considered by scholars as the Quelle?
Matthew, Mark, and Luke are called the “Synoptic Gospels” because their similarities allow them to be “read together.” The stories are not just similar; in many instances they agree verbatim. Matthew and Luke shared another source, no longer extant, that scholars label Q (for “Quelle,” meaning “source”).
Furthermore, when was the first gospel written and by whom? The first written documents probably included an account of the death of Jesus and a collection of sayings attributed to him. Then, in about the year 70, the evangelist known as Mark wrote the first "gospel" -- the words mean "good news" about Jesus.
Correspondingly, what was the first Gospel to be written?
What order were the Gospels written?
It begins with seven letters attributed to Paul, all from the 50s. The first Gospel is Mark (not Matthew), written around 70. Revelation is not last, but almost in the middle, written in the 90s. Twelve documents follow Revelation, with II Peter the last, written as late as near the middle of the second century.