Well, the Hijri date 21 Muharram 1137 corresponds to the Gregorian date Monday, 9 October 1724. This date lies in the first month of the Hijri year 1137 AH, which is Muharram of 1137 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1137/01/21 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 9 October 1724 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Muharram 1137 AH to its equivalent Gregorian date.
وَجَحَدُوا۟ بِهَا وَٱسْتَيْقَنَتْهَآ أَنفُسُهُمْ ظُلْمًۭا وَعُلُوًّۭا ۚ فَٱنظُرْ كَيْفَ كَانَ عَٰقِبَةُ ٱلْمُفْسِدِينَ
And they denied them, though their souls acknowledged them, for spite and arrogance. Then see the nature of the consequence for the wrong-doers!
Surah An-Naml(27:14)
