Islamic jurisprudence specifies which foods are halāl (حَلَال "lawful") and which are harām (حَرَامْ "unlawful"). This is derived from commandments found in the Qur'an, the holy book of Islam
I don’t believe they were but I’m not 100%
Before to give an answer about the particular question is necessary comment about the empire.
The fall of the Roman empire is a subject for many historians , they says the Roman power may have collapsed, but many the various cultures of the Roman empire mutated and envolved.
However the empire never led the text of Greek.
The National Magazine Youth's Companion
