September 23

…the praiseworthy qualities and the greatness and nobility of Anúshírván the Generous and the Just. [1] That fair-minded monarch came to power at a time when the once solidly established throne of Persia was about to crumble away. With his Divine gift of intellect, he laid the foundations of justice, uprooting oppression and tyranny and gathering the scattered peoples of Persia under the wings of his dominion. Thanks to the restoring influence of his continual care, Persia that had lain withered and desolate was quickened into life and rapidly changed into the fairest of all flourishing nations. He rebuilt and reinforced the disorganized powers of the state, and the renown of his righteousness and justice echoed across the seven climes, [2] until the peoples rose up out of their degradation and misery to the heights of felicity and honor. Although he was a Magian, Muhammad, that Center of creation and Sun of prophethood, said of him: “I was born in the time of a just king,” and rejoiced at having come into the world during his reign. 
(‘Abdu’l-Baha, ‘The Secret of Divine Civilization’)
[1] Sásáníyán king who reigned 531–578 A.D
[2] i.e., the whole world