Well, the Hijri date 26 Safar 1235 corresponds to the Gregorian date Monday, 13 December 1819. This date lies in the second month of the Hijri year 1235 AH, which is Safar of 1235 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1235/02/26 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 13 December 1819 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Safar 1235 AH to its equivalent Gregorian date.
وَمَا لَكُمْ لَا تُؤْمِنُونَ بِٱللَّهِ ۙ وَٱلرَّسُولُ يَدْعُوكُمْ لِتُؤْمِنُوا۟ بِرَبِّكُمْ وَقَدْ أَخَذَ مِيثَٰقَكُمْ إِن كُنتُم مُّؤْمِنِينَ
What aileth you that ye believe not in Allah, when the messenger calleth you to believe in your Lord, and He hath already made a covenant with you, if ye are believers?
Surah Al-Hadid(57:8)