The book of Job does not mention any indications of data and only very few indications of places. This is why this so very special book cannot be arranged in precise historical order.

During the course of time the following authors have been supposed: Job himself, Moses, Solomon, Isaiah, Ezekiel and Baruch. But all these suppositions are uncertain. The oldest supposition dates the book as far back as the time of Moses or even before Moses. In any case the events occurring in the book would indicate a very early time of origin.

The following facts mainly suggest so:

Job’s high age (chap. 42:16)
The people of Israel are not mentioned.
The habit to offer at home (only meat offering!).
The mentioning of the “kesitah”-coin (Job 42:11), which is else mentioned in Genesis 33:19 and Joshua 24:32 only (JND-Translation).
Job and his friends knew God as “the Almighty” as did Abraham.
These and further details would suggest the times of the patriarchs.

The land of Uz (chap. 1:1) is generally suggested eastwards of river Jordan towards the border to Arabia in the land of Edom (compare Lamentations 4:21) or its vicinity. In the Septuagint (Greek translation of the OT) Job is even identified with Jobab, the second king of the Edomites (Genesis 36:33).

The Holy Spirit confirms Job’s history by being mentioned as a historical person in the Old Testament (Ezekiel 14:14; Ezekiel 14:20) as well as in the New Testament (James 5:11).

Satan, the adversary of God and men, appears several times in chapters 1 and 2. As fallen prince of the angels he has yet admittance to the throne of God in heaven (Is. 14:12-25; Ezekiel 28:14-19). This is where he is the accuser of the brethren (Revelation 12:10). The cross of Calvary, however, has broken Satan’s power (Hebrews 2:14). He will be bound during the Millennium and at the end he will be thrown into the lake of fire and brimstone forever and ever (Revelation 20:1-3; Revelation 20:10). The only other references to the name Satan in the OT are 1 Chronicles 21:1 and Zechariah 3:1-2.