Well, the Hijri date 1 Rajab 1161 corresponds to the Gregorian date Wednesday, 26 June 1748. This date lies in the seventh month of the Hijri year 1161 AH, which is Rajab of 1161 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1161/07/01 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 26 June 1748 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rajab 1161 AH to its equivalent Gregorian date.
هَلْ يَنظُرُونَ إِلَّآ أَن يَأْتِيَهُمُ ٱللَّهُ فِى ظُلَلٍۢ مِّنَ ٱلْغَمَامِ وَٱلْمَلَٰٓئِكَةُ وَقُضِىَ ٱلْأَمْرُ ۚ وَإِلَى ٱللَّهِ تُرْجَعُ ٱلْأُمُورُ
Wait they for naught else than that Allah should come unto them in the shadows of the clouds with the angels? Then the case would be already judged. All cases go back to Allah (for judgment).
Surah Al-Baqara(2:210)