Hi Smiddy3,
The Gospels attributed to Mark, Matthew, and Luke are known as "synoptic", meaning "same view", or similar. But they are not. Each was created by anonymous writers for its own local community, for its own local purpose.
The earliest, being Mark, was written about 68-70 CE. "Matthew" followed some 15 years later, written for a different purpose (it is artificially structured into 5 parts, now known by the term "Discourses"). "Luke" followed and its current construct was completed about 120 CE, when Marcion was at his dominant height.
While some Gospels suggest Jesus' ministry lasted 6 months, other Gospels, and here I include John's, suggest it could have been longer, maybe a year, maybe three.
Not one Gospel is a literal historical documentary in the sense that we might consider objective journalism.
Not that there would be two Jerusalems, rather there were several different versions of the Jesus (actually Joshua). Not one of the New Testament writers either saw or heard Jesus.
And as a completely unrelated comment, I would like to add that the Watchtower's description of the "New Testament" as "Christian Greek Scriptures" is completely wrong. The documents were Jewish. They were written by Jews for Jews about Jews.
Doug