Bro. Charles:
Reply to your inquiry about date of March 14th, 445 BC.
Allow me to preface this by saying the decree that fulfilled the 173,880 - to the day when Jesus rode the donkey foal up the road into the Temple on Passover of 32 AD actually determines which of the decrees is the correct one. It is determined by counting backwards from the day of His Triumphal Entry into the Temple. That eventful day brought to a close the first 69 weeks of Daniel 9:24-27, or 483 Biblical years. We are but a short distance to the last of the Daniel prophecy of the 70th week.
We know that there were four Persian decrees.
1. The first decree was a "religious" decree by Cyrus in 538 BC. +++ It authorized the rebuilding of the Temple.
2. The second decree was a "religious" decree of Darius Hystapses in 519 BC. +++ It reaffirmed the right of the Jews to rebuild the Temple.
3. The third decree was a "religious" decree of Artaxerxes in 456 BC. +++ It authorized Ezra to take priests/Levites for religious services.
4. The fourth decree was a "political" decree of Artaxerxes in 445 BC. +++ It authorized Nehemiah to rebuild Jerusalem's walls.
The correct prophecy (#4 here) is found in Nehemiah 2 and was fulfilled precisely to the day, hour and moment on April 6, of 32 AD. The days first had to be converted to the Gregorian calendar. Most of the Old Testament era was on the Julian calendar, and when converted to the Gregorian calendar, 483 "Biblical" years works out to 173,880 days precisely to the day, or Palm Sunday, 32 AD. The reason for the calendar recalculations came as a result of a near pass-by of Earth and Mars in approximately 712-710. The pass-by led to an energy transfer between Mars and Earth which altered or changed the rotation of both Mars and the Earth. Mars originally had a 720-day calendar, Earth had a 360-day calendar. As a result of the close passing between the two planets an energy transfer altered the orbits of Mars and Earth. Mars lost roughly 5 days of its rotation, while the Earth gained roughly the same amount of time. Pope Gregory had the calendar changed by 11 days to correct for the astronomical event change.
This was first determined by Sir Robert Anderson, chief inspector of Scotland Yard in London during the late 1800's. Sir Robert Anderson died in 1918, and is famous for his book 'The Coming Prince' first published in 1895. It has been repeated in the books of the late Grant Jeffrey, who went to be with the Lord in May of 2012.
Sir Robert Anderson's book, 'The Coming Prince' is still in print today, and continues to sell well but generally is not publicized for obvious reasons.
You can read his book at the web site - Rapture Ready.com - Go to Rapture Ready.com and search for Robert Anderson. While the book is not expensive if one wants a copy of their own, I think it sells for around $15. It is mathematical and technical but confirms a number of things the church does not deal with nor does it want to deal with it. Regretfully, the church and church tradition are dominated by the Vatican and Rome's daughter churches so you don't hear much about Sir Robert Anderson in our day. I can tell you that the mainstream church could care less about this info. I majored in history in college and seminary and have a MS in church history/theology along with my M.Div. and MA in Christian Apologetics; and it is absolutely appalling as to the ignorance of people, of things being left out of the public realm. Colleges haven't required world history as a requirement for graduation since the early 1970's, and high school history is a pathetic joke. A perfect example is the reason we [the USA] fought the Viet Nam War. Most people could not tell you for their life. In religious circles it [the Viet Nam War] is referred to as "Spelly's War". "Spelly" was the GI-term that stood for New York City's Cardinal Spellman. We did Rome's dirty work to punish the Vietnamese people for having throne out the French Catholics in French Indo-China in 1953/54 at Dien Bien Phu. The Viet Nam War was "payback" for throwing the Catholic Church out of SE Asia. The truth is found in Avro Manhattan's book, 'Viet Nam: Why Did We Go?' Its virtually hard to find but it is also on the Internet for those wanting to read it.
I did not list the passages for the the first three decrees, as I am not at home when I keyed this reply I didn't have a Bible with my notes handy. I do have them at home if you want that info.
Jesus entry into the Temple area on Palm Sunday of 32 AD which was exactly 173,880 days from Artaxerxes giving Nehemiah the funds, necessary traveling papers/documents, to go back and rebuild the walls of the Holy City of Jerusalem. The margin of error as I pointed out in my post on this many weeks ago was "zero"!
I trust that this had been helpful.
Have a blessed day,
Pastor Bob