Historians have documented that here or there some society or nation experienced a steep moral decline and then collapsed.
وَمِنَ ٱلْجَدِيرِ بِٱلْمُلَاحَظَةِ أَنَّ بُولُسَ ٱسْتَهَلَّ نُبُوَّتَهُ عَنِ ٱلْأَيَّامِ ٱلْأَخِيرَةِ بِٱلْعِبَارَةِ ٱلتَّالِيَةِ :‏ « اِعْلَمْ هٰذَا » .‏