Well, the Hijri date 11 Safar 1237 corresponds to the Gregorian date Tuesday, 6 November 1821. This date lies in the second month of the Hijri year 1237 AH, which is Safar of 1237 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1237/02/11 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 6 November 1821 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Safar 1237 AH to its equivalent Gregorian date.
إِنَّ ٱلَّذِينَ كَفَرُوا۟ وَمَاتُوا۟ وَهُمْ كُفَّارٌ أُو۟لَٰٓئِكَ عَلَيْهِمْ لَعْنَةُ ٱللَّهِ وَٱلْمَلَٰٓئِكَةِ وَٱلنَّاسِ أَجْمَعِينَ
Lo! Those who disbelieve, and die while they are disbelievers; on them is the curse of Allah and of angels and of men combined.
Surah Al-Baqara(2:161)