Well, the Hijri date 27 Jumada Al Oula 1256 corresponds to the Gregorian date Sunday, 26 July 1840. This date lies in the fifth month of the Hijri year 1256 AH, which is Jumada Al-Awwal of 1256 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1256/05/27 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 26 July 1840 to its equivalent Arabic date.
The following is the conversion of the Arabic date 27 Jumada Al Oula 1256 AH to its equivalent Gregorian date.
أُو۟لَٰٓئِكَ ٱلَّذِينَ لَعَنَهُمُ ٱللَّهُ ۖ وَمَن يَلْعَنِ ٱللَّهُ فَلَن تَجِدَ لَهُۥ نَصِيرًا
Those are they whom Allah hath cursed, and he whom Allah hath cursed, thou (O Muhammad) wilt find for him no helper.
Surah An-Nisaa(4:52)