Well, the Hijri date 15 Ramadan 1271 corresponds to the Gregorian date Thursday, 31 May 1855. This date lies in the ninth month of the Hijri year 1271 AH, which is Ramadan of 1271 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1271/09/15 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 31 May 1855 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Ramadan 1271 AH to its equivalent Gregorian date.
وَعَلَّمَ ءَادَمَ ٱلْأَسْمَآءَ كُلَّهَا ثُمَّ عَرَضَهُمْ عَلَى ٱلْمَلَٰٓئِكَةِ فَقَالَ أَنۢبِـُٔونِى بِأَسْمَآءِ هَٰٓؤُلَآءِ إِن كُنتُمْ صَٰدِقِينَ
And He taught Adam all the names, then showed them to the angels, saying: Inform Me of the names of these, if ye are truthful.
Surah Al-Baqara(2:31)