Well, the Hijri date 15 Safar 1222 corresponds to the Gregorian date Thursday, 23 April 1807. This date lies in the second month of the Hijri year 1222 AH, which is Safar of 1222 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1222/02/15 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 23 April 1807 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Safar 1222 AH to its equivalent Gregorian date.
وَيَجْعَلُونَ لِلَّهِ ٱلْبَنَٰتِ سُبْحَٰنَهُۥ ۙ وَلَهُم مَّا يَشْتَهُونَ
And they assign unto Allah daughters - Be He Glorified! - and unto themselves what they desire;
Surah An-Nahl(16:57)