Well, the Hijri date 4 Jumada Al Oula 1259 corresponds to the Gregorian date Thursday, 1 June 1843. This date lies in the fifth month of the Hijri year 1259 AH, which is Jumada Al-Awwal of 1259 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1259/05/04 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 1 June 1843 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Jumada Al Oula 1259 AH to its equivalent Gregorian date.
ثُمَّ أَنزَلَ ٱللَّهُ سَكِينَتَهُۥ عَلَىٰ رَسُولِهِۦ وَعَلَى ٱلْمُؤْمِنِينَ وَأَنزَلَ جُنُودًۭا لَّمْ تَرَوْهَا وَعَذَّبَ ٱلَّذِينَ كَفَرُوا۟ ۚ وَذَٰلِكَ جَزَآءُ ٱلْكَٰفِرِينَ
Then Allah sent His peace of reassurance down upon His messenger and upon the believers, and sent down hosts ye could not see, and punished those who disbelieved. Such is the reward of disbelievers.
Surah At-Tawba(9:26)