On the Arab invasion this work was in great danger of perishing at the hands of the iconclastic caliph Omar and his generals, but it was fortunately preserved; and we find it in the 2nd century of the Hegira being paraphrased in Arabic by Abdallah ibn el Mokaffa, a learned Persian who had embraced Islam.
The Years Of The Hegira Are Purely Lunar, And Always Consist Of Twelve Lunar Months, Commencing With The Approximate New Moon, Without Any Intercalation To Keep Them To The Same Season With Respect To The Sun, So That They Retrograde Through All The Seasons In About 321 Years.
Salman (under Sultan Ibrahim, 1059 1099) had successfully continued, reached its perfection in the famous group of panegyrists who gathered in the first half of the 6th century of the Hegira round the throne of Sultan Sinjar, and partly also round that of his great antagonist, Atsiz, shah of Khwarizm.
He died in the year 411 of the Hegira (1020 A.D.), aged about eighty, eleven years after the completion of his great work.
In the north-west corner of the mosque is the tomb of Sidi Okba, the leader of the Arabs who in the 1st century of the Hegira conquered Africa for Islam from Egypt to Tangier.
Fruitful as the 6th and 7th centuries of the Hegira were in panegyrics, they attained an equally high standard in didactic and mystic poetry.
For a thousand years, from the Hegira in 622 to the siege of Vienna in 1683, the peril of a Mahommedan conquest of Europe was almost continually present.
It is stated by D'Herbelot that the era of the Hegira was instituted by Omar, the second caliph, in imitation of the Christian era of the martyrs.
To find from this table the day of the week on which any year of the Hegira commences, the rule to be observed will be as follows: Rule.
Required The Date On Which The Year 1362 Of The Hegira Begins.