Authenticity of the Longer Ending of Mark

When did the ending of the gospel of Mark change? What were the circumstances surrounding the addition to the ending?These sources primarily discuss Textual Criticism as it relates to the New Testament Gospels, particularly the Book of Mark. One source focuses on the controversy surrounding the ending of Mark, examining different versions and the historical evidence for each. Another source explores the differences and similarities between the Gospels, noting that Matthew, Mark, and Luke are considered synoptic due to shared content and sources, while John is seen as more distinct. A third source introduces a series of articles aimed at defending the historical reliability of the Gospels by examining textual transmission, internal evidence, external evidence, and the issue of miracles.Sources:A Case against the Longer Ending of Mark - Text & Canon InstituteA Case for the Longer Ending of Mark - Text & Canon InstituteAbstract This article examines the Long ending of Mark which has generated controversy among Scholars of the New Testament. SchoAre the main Gospels(Matthew, Mark, Luke and john) the same story told slightly differently? : r/Christianity - RedditDid Mark Write Mark 16:9-20? A Textual Criticism Case Study - Alpha and Omega MinistriesGospel of Mark - WikipediaMarcan priority - WikipediaThe Case For The Reliability Of The Gospels – Introduction - Cerebral Faith