Why are other civilizations ignored in the Bible?

[Jacob(smooth)]

Unfortunately you have four stories that don't actually match up in all the details.

You are right they don't all match up. Each writer recorded certain specific details of Jesus' life and each writer, though inspired, retained their own individual and unique style of writing. Each gospel writer was inspired to portray Jesus in a particular light. For example, Matthew's style was geared more towards a Jewish audience while John was writing of Jesus as the Logos, or The Word of God. John focuses on the divinity of Christ while Luke emphasizes His humanity.

When taken as a whole we have more of a complete picture than what we would have if we were to take them individually.

News reporters covering the 9/11 terrorist attack on the WTC, though reporting on one terrorist attack, each recorded different things depending on their vantage point. Taken together the accounts of the reporters provide us with a more complete picture of the attack.

The gospel accounts, though differing in certain respects, never contradict one another.

Except where they do and one has to take a stretch to make them fit.

For eg, you would think that if they were writing down the last words of the living god they would all hear the same words, instead of which we have 3 different last words. And wearing a robe which was purply red. Or red. Or purple.

Of course one can, at a stretch, find a way in which they are all true. But why is it reported that way? Like and John both have a phrase followed by "and then he gave up the ghost? Did he use both? If so, why does neither report record all of the words. It's not a long speech.