It would take me far more than the apace allotted here to fully explain, but I will do my best in a very truncated version. I think happiness (the one just above me) was very close, but I think it was 457 BC. There were four decrees altogether, Cyrus in 536 BC, then Darius in 519 BC, then two by Artaxerxes, 457 and 444 BC. The one in 457 was the only one to receive an official seal, and the one in 444 was pretty much just an affirmation of the earlier one in 457. Ezra left Babylon on the first day of Nisan, 457 BC to go back and rebuild the temple. The end of the entire period, or the 2300 years that Daniel spoke of is 1844. The first day of Nisan in our year of 1844 was, if memory serves, March 21 (May be March 25, but I do not think so.). In Revelation 3:12 Jesus said He would have a new name when He returns. If you told a Jew that Christ had appeared, he would deny it. The Baha'i Faith started on May 23, 1844. There are thousands of prophecies from every religion that converge on 1844, Hindu, Muslim, Jewish, Christian, Native American and many more. Now, carefully consider these words: (Each quote is just a tiny part of a much longer passage.)
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The Jews await the Messiah, the Christians the return of Christ, the Moslems the Mahdi, the Buddhists the fifth Buddha, the Zoroastrians Shah Bahram, the Hindus the reincarnation of Krishna, and the Atheists - a better social organization! Baha'u'llah represents all these, and thus destroys the rivalries and the enmities of the different religions; reconciles them in their primitive purity, and frees them from the corruption of dogmas and rites.
(Abdu'l-Baha, Tablets of Abdu'l-Baha v1, p. vii)
Say, O followers of the Son![1] Have ye shut out yourselves from Me by reason of My Name? Wherefore ponder ye not in your hearts? Day and night ye have been calling upon your Lord, the Omnipotent, but when He came from the heaven of eternity in His great glory, ye turned aside from Him and remained sunk in heedlessness.
[1 Jesus.]
Consider those who rejected the Spirit [1] when He came unto them with manifest dominion. How numerous the Pharisees who had secluded themselves in synagogues in His name, lamenting over their separation from Him, and yet when the portals of reunion were flung open and the divine Luminary shone resplendent from the Dayspring of Beauty, they disbelieved in God, the Exalted, the Mighty. They failed to attain His presence, notwithstanding that His advent had been promised them in the Book of Isaiah as well as in the Books of the Prophets and the Messengers. No one from among them turned his face towards the Dayspring of divine bounty except such as were destitute of any power amongst men. And yet, today, every man endowed with power and invested with sovereignty prideth himself on His Name. Moreover, call thou to mind the one who sentenced Jesus to death. He was the most learned of his age in his own country, whilst he who was only a fisherman believed in Him. Take good heed and be of them that observe the warning.
[1 Jesus.]
(Baha'u'llah, Tablets of Baha'u'llah, p. 9)
O Jews! If ye be intent on crucifying once again Jesus, the Spirit of God, put Me to death, for He hath once more, in My person, been made manifest unto you. Deal with Me as ye wish, for I have vowed to lay down My life in the path of God. I will fear no one, though the powers of earth and heaven be leagued against Me. Followers of the Gospel! If ye cherish the desire to slay Muhammad, the Apostle of God, seize Me and put an end to My life, for I am He, and My Self is His Self. Do unto Me as ye like, for the deepest longing of Mine heart is to attain the presence of My Best-Beloved in His Kingdom of Glory. Such is the Divine decree, if ye know it. Followers of Muhammad! If it be your wish to riddle with your shafts the breast of Him Who hath caused His Book the Bayan to be sent down unto you, lay hands on Me and persecute Me, for I am His Well-Beloved, the revelation of His own Self, though My name be not His name. I have come in the shadows of the clouds of glory, and am invested by God with invincible sovereignty. He, verily, is the Truth, the Knower of things unseen. I, verily, anticipate from you the treatment ye have accorded unto Him that came before Me. To this all things, verily, witness, if ye be of those who hearken. O people of the Bayan! If ye have resolved to shed the blood of Him Whose coming the Báb hath proclaimed, Whose advent Muhammad hath prophesied, and Whose Revelation Jesus Christ Himself hath announced, behold Me standing, ready and defenseless, before you. Deal with Me after your own desires.
(Baha'u'llah, Gleanings from the Writings of Baha'u'llah, p. 100)