Well, the Hijri date 21 Rajab 1484 corresponds to the Gregorian date Saturday, 3 December 2061. This date lies in the seventh month of the Hijri year 1484 AH, which is Rajab of 1484 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1484/07/21 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 3 December 2061 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rajab 1484 AH to its equivalent Gregorian date.
مَا سَمِعْنَا بِهَٰذَا فِى ٱلْمِلَّةِ ٱلْءَاخِرَةِ إِنْ هَٰذَآ إِلَّا ٱخْتِلَٰقٌ
We have not heard of this in later religion. This is naught but an invention.
Surah Saad(38:7)