Well, the Hijri date 4 Shawwal 1299 corresponds to the Gregorian date Friday, 18 August 1882. This date lies in the tenth month of the Hijri year 1299 AH, which is Shawwal of 1299 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1299/10/04 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 18 August 1882 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Shawwal 1299 AH to its equivalent Gregorian date.
وَمِنْهُمْ أُمِّيُّونَ لَا يَعْلَمُونَ ٱلْكِتَٰبَ إِلَّآ أَمَانِىَّ وَإِنْ هُمْ إِلَّا يَظُنُّونَ
Among them are unlettered folk who know the Scripture not except from hearsay. They but guess.
Surah Al-Baqara(2:78)