It is usually dated through the eschatological discourse in Mark 13, which scholars interpret as pointing to the First Jewish–Roman War (66–74 AD)—a war that led to the destruction of the Second Temple in AD 70. This would place the composition of Mark either immediately after the destruction or during the years immediately prior.
Nathanael answered and sayde vnto him: Rabbi thou arte the sonne of God thou arte the kynge of Israel. John 1:49 TYN