The Bible was written over a period of approximately 1,500 to 1,600 years. The earliest writings, such as Genesis or Job, are believed to have been completed around 1400 BC, while the last book, Revelation, was written around AD 90 or 95. This timeline spans from roughly 1450 BC to the late first century AD
. The writing was not continuous; for example, there was a gap of about 400 years between the Old Testament's last book, Malachi, and the beginning of the New Testament. The New Testament itself was written within about 50 years, from AD 44 to 90 or 95
. Multiple authors over different eras contributed to the Bible, inspired by the Holy Spirit according to Christian belief, making it a collection of writings rather than a single work written in one go
