Here follows the original authorship lists of the books of the Bible....

Genesis, Exodus, Leviticus, Numbers, Deuteronomy = Moses - 1400 B.C.

Joshua = Joshua - 1350 B.C.

Judges, Ruth, 1 Samuel, 2 Samuel = Samuel / Nathan / Gad - 1000 - 900 B.C.

1 Kings, 2 Kings = Jeremiah - 600 B.C.

1 Chronicles, 2 Chronicles, Ezra, Nehemiah = Ezra - 450 B.C.

Esther = Mordecai - 400 B.C.

Job = Moses - 1400 B.C.

Psalms = several different authors, mostly David - 1000 - 400 B.C.

Proverbs, Ecclesiastes, Song of Solomon = Solomon - 900 B.C.

Isaiah = Isaiah - 700 B.C.

Jeremiah, Lamentations = Jeremiah - 600 B.C.

Ezekiel = Ezekiel - 550 B.C.

Daniel = Daniel - 550 B.C.

Hosea = Hosea - 750 B.C.

Joel = Joel - 850 B.C.

Amos = Amos - 750 B.C.

Obadiah = Obadiah - 600 B.C.

Jonah = Jonah - 700 B.C.

Micah = Micah - 700 B.C.

Nahum = Nahum - 650 B.C.

Habakkuk = Habakkuk - 600 B.C.

Zephaniah = Zephaniah - 650 B.C.

Haggai = Haggai - 520 B.C.

Zechariah = Zechariah - 500 B.C.

Malachi = Malachi - 430 B.C.

Matthew = Matthew - A.D. 55

Mark = John Mark - A.D. 50

Luke = Luke - A.D. 60

John = John - A.D. 90

Acts = Luke - A.D. 65

Romans, 1 Corinthians, 2 Corinthians, Galatians, Ephesians, Philippians, Colossians, 1 Thessalonians, 2 Thessalonians, 1 Timothy, 2 Timothy, Titus, Philemon = Paul - A.D. 50-70

Hebrews = unknown, best guesses are Paul, Luke, Barnabas, or Apollos - 65 A.D.

James = James - A.D. 45

1 Peter, 2 Peter = Peter - A.D. 60

1 John, 2 John, 3 John = John - A.D. 90

Jude = Jude - A.D. 60

Revelation = John - A.D. 90