Lots of evidence for the reliability of the Book of Daniel and his prophecies 526-1 - 9 - 3

Prophecy is history written in advance. 2 Peter 1:19-21, “19 We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts: 20  Knowing this first, that no prophecy of the scripture is of any private interpretation. 21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.”

“The intertestamental period is the Protestant term and deuterocanonical period is the Catholic and Orthodox Christian term for the gap of time between the period covered by the Hebrew Bible and the period covered by the Christian New Testament.”

[https://en.wikipedia.org/wiki/Intertestamental_period]

Often this period of time is called the silent years.

It's astounding that many people will profess to be Christians and yet doubt the prophetic word of God. How often have these arrogant people said “I believe in most of the New Testament but the Old Testament is allegory?” People have long claimed that Daniel was written hundreds of years before the fulfillment of the events he prophesied and say “Surely the book of Daniel was written after the fact.” This argument falls apart when one takes the time to read the Septuagint Bible, the Old Testament written in the very concise language of the Greeks. The Septuagint Bible was commissioned by King Ptolemy Philadelphia and was completed nearly 300 years before the birth of Christ.

So many fulfilled prophecies including, Daniel’s visit by the angel Gabriel. Daniel was given a time-line from the rebuilding of Jerusalem until the time Jesus would ride into Jerusalem.  Daniel 9:25, “Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times.”

As prophesied, Jesus came riding into Jerusalem to the day of Daniel 9:25 in confirmation also of Zechariah 9:9, “Rejoice greatly, O daughter of Zion; shout, O daughter of Jerusalem: behold, thy King cometh unto thee: he is just, and having salvation; lowly, and riding upon an ass, and upon a colt the foal of an ass.”