Well, the Hijri date 18 Safar 1273 corresponds to the Gregorian date Friday, 17 October 1856. This date lies in the second month of the Hijri year 1273 AH, which is Safar of 1273 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1273/02/18 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 17 October 1856 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Safar 1273 AH to its equivalent Gregorian date.
فَوَرَبِّ ٱلسَّمَآءِ وَٱلْأَرْضِ إِنَّهُۥ لَحَقٌّۭ مِّثْلَ مَآ أَنَّكُمْ تَنطِقُونَ
And by the Lord of the heavens and the earth, it is the truth, even as (it is true) that ye speak.
Surah Adh-Dhaariyat(51:23)