Well, the Hijri date 21 Shaban 1156 corresponds to the Gregorian date Thursday, 10 October 1743. This date lies in the eighth month of the Hijri year 1156 AH, which is Shaban of 1156 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1156/08/21 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 10 October 1743 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shaban 1156 AH to its equivalent Gregorian date.
فَلِلَّهِ ٱلْءَاخِرَةُ وَٱلْأُولَىٰ
But unto Allah belongeth the after (life), and the former.
Surah An-Najm(53:25)