Well, the Hijri date 21 Muharram 1226 corresponds to the Gregorian date Thursday, 14 February 1811. This date lies in the first month of the Hijri year 1226 AH, which is Muharram of 1226 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1226/01/21 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 14 February 1811 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Muharram 1226 AH to its equivalent Gregorian date.
وَقُرْءَانًۭا فَرَقْنَٰهُ لِتَقْرَأَهُۥ عَلَى ٱلنَّاسِ عَلَىٰ مُكْثٍۢ وَنَزَّلْنَٰهُ تَنزِيلًۭا
And (it is) a Qur'an that We have divided, that thou mayst recite it unto mankind at intervals, and We have revealed it by (successive) revelation.
Surah Al-Israa(17:106)