The Bible contains the Old Testament and the New Testament. The former runs from creation through the early centuries of the nation of Israel up to where B.C. becomes A.D. The latter covers God the Father’s sending to earth God the Son in the form of Jesus Christ, the watershed of history. And it takes us well into the first century, during the early days of Christianity.
The most important single statement in the Bible is that CHRIST ROSE FROM THE DEAD! The O.T. sets the stage for it; the N.T. describes it.
The Bible was written over 1,500 years or so by some 40 authors.