Well, the Hijri date 1 Rabi Al Thani 1159 corresponds to the Gregorian date Friday, 22 April 1746. This date lies in the fourth month of the Hijri year 1159 AH, which is Rabi Al-Thani of 1159 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1159/04/01 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 April 1746 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rabi Al Thani 1159 AH to its equivalent Gregorian date.
وَمَا مِن دَآبَّةٍۢ فِى ٱلْأَرْضِ وَلَا طَٰٓئِرٍۢ يَطِيرُ بِجَنَاحَيْهِ إِلَّآ أُمَمٌ أَمْثَالُكُم ۚ مَّا فَرَّطْنَا فِى ٱلْكِتَٰبِ مِن شَىْءٍۢ ۚ ثُمَّ إِلَىٰ رَبِّهِمْ يُحْشَرُونَ
There is not an animal in the earth, nor a flying creature flying on two wings, but they are peoples like unto you. We have neglected nothing in the Book (of Our decrees). Then unto their Lord they will be gathered.
Surah Al-An'aam(6:38)