Well, the Hijri date 11 Dhul Hijjah 1229 corresponds to the Gregorian date Wednesday, 23 November 1814. This date lies in the twelfth month of the Hijri year 1229 AH, which is Dhu Al-Hijjah of 1229 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1229/12/11 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 23 November 1814 to its equivalent Arabic date.
The following is the conversion of the Arabic date 11 Dhul Hijjah 1229 AH to its equivalent Gregorian date.
أَلَمْ يَرَوْا۟ كَمْ أَهْلَكْنَا مِن قَبْلِهِم مِّن قَرْنٍۢ مَّكَّنَّٰهُمْ فِى ٱلْأَرْضِ مَا لَمْ نُمَكِّن لَّكُمْ وَأَرْسَلْنَا ٱلسَّمَآءَ عَلَيْهِم مِّدْرَارًۭا وَجَعَلْنَا ٱلْأَنْهَٰرَ تَجْرِى مِن تَحْتِهِمْ فَأَهْلَكْنَٰهُم بِذُنُوبِهِمْ وَأَنشَأْنَا مِنۢ بَعْدِهِمْ قَرْنًا ءَاخَرِينَ
See they not how many a generation We destroyed before them, whom We had established in the earth more firmly than We have established you, and We shed on them abundant showers from the sky, and made the rivers flow beneath them. Yet we destroyed them for their sins, and created after them another generation.
Surah Al-An'aam(6:6)