Well, the Hijri date 1 Rabi Al Awwal 1143 corresponds to the Gregorian date Wednesday, 13 September 1730. This date lies in the third month of the Hijri year 1143 AH, which is Rabi Al-Awwal of 1143 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1143/03/01 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 13 September 1730 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rabi Al Awwal 1143 AH to its equivalent Gregorian date.
لِيُكَفِّرَ ٱللَّهُ عَنْهُمْ أَسْوَأَ ٱلَّذِى عَمِلُوا۟ وَيَجْزِيَهُمْ أَجْرَهُم بِأَحْسَنِ ٱلَّذِى كَانُوا۟ يَعْمَلُونَ
That Allah will remit from them the worst of what they did, and will pay them for reward the best they used to do.
Surah Az-Zumar(39:35)