Well, the Hijri date 21 Rajab 1298 corresponds to the Gregorian date Saturday, 18 June 1881. This date lies in the seventh month of the Hijri year 1298 AH, which is Rajab of 1298 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1298/07/21 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 June 1881 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rajab 1298 AH to its equivalent Gregorian date.
وَٱلْبُدْنَ جَعَلْنَٰهَا لَكُم مِّن شَعَٰٓئِرِ ٱللَّهِ لَكُمْ فِيهَا خَيْرٌۭ ۖ فَٱذْكُرُوا۟ ٱسْمَ ٱللَّهِ عَلَيْهَا صَوَآفَّ ۖ فَإِذَا وَجَبَتْ جُنُوبُهَا فَكُلُوا۟ مِنْهَا وَأَطْعِمُوا۟ ٱلْقَانِعَ وَٱلْمُعْتَرَّ ۚ كَذَٰلِكَ سَخَّرْنَٰهَا لَكُمْ لَعَلَّكُمْ تَشْكُرُونَ
And the camels! We have appointed them among the ceremonies of Allah. Therein ye have much good. So mention the name of Allah over them when they are drawn up in lines. Then when their flanks fall (dead), eat thereof and feed the beggar and the suppliant. Thus have We made them subject unto you, that haply ye may give thanks.
Surah Al-Hajj(22:36)