Well, the Hijri date 18 Safar 1183 corresponds to the Gregorian date Thursday, 22 June 1769. This date lies in the second month of the Hijri year 1183 AH, which is Safar of 1183 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1183/02/18 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 22 June 1769 to its equivalent Arabic date.
The following is the conversion of the Arabic date 18 Safar 1183 AH to its equivalent Gregorian date.
مَآ ءَامَنَتْ قَبْلَهُم مِّن قَرْيَةٍ أَهْلَكْنَٰهَآ ۖ أَفَهُمْ يُؤْمِنُونَ
Not a township believed of those which We destroyed before them (though We sent them portents): would they then believe?
Surah Al-Anbiyaa(21:6)