> Why would I read Wikipedia

Because it was a convenient place for me to suggest for some further discussion of the challenge of knowing when Jesus' birth actually took place (I ask you to at least consider for the sake of discussion Jesus as a real person, regardless of whether you personally believe He existed), and how Christmas came to be celebrated when it is.

> as for the birth of Christ it was not Christmas Eve

Don't you think there is at least a 1 in 365 chance?

Personally as a Christian, I never worried about whether we identified the correct date to celebrate Christmas. Who we believe Jesus to be and why His birth would be worth celebrating is really the point.