Well, the Hijri date 29 Rabi Al Awwal 1254 corresponds to the Gregorian date Thursday, 21 June 1838. This date lies in the third month of the Hijri year 1254 AH, which is Rabi Al-Awwal of 1254 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1254/03/29 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 21 June 1838 to its equivalent Arabic date.
The following is the conversion of the Arabic date 29 Rabi Al Awwal 1254 AH to its equivalent Gregorian date.
وَمِنَ ٱلنَّاسِ مَن يُعْجِبُكَ قَوْلُهُۥ فِى ٱلْحَيَوٰةِ ٱلدُّنْيَا وَيُشْهِدُ ٱللَّهَ عَلَىٰ مَا فِى قَلْبِهِۦ وَهُوَ أَلَدُّ ٱلْخِصَامِ
And of mankind there is he whoso conversation on the life of this world pleaseth thee (Muhammad), and he calleth Allah to witness as to that which is in his heart; yet he is the most rigid of opponents.
Surah Al-Baqara(2:204)