Aspects of Christianity that caused it to spread quickly are:
The Romans greatly admired the art and architecture of Greece, as well as many of their ideas. Roman art is not really the same as Greek art, but the Romans did copy the Greeks. One notable copy is the column. The Greeks used solid marble 'drums' to build their columns, the Romans built theirs with brick, faced with cement to resemble the Greek columns.
.Roman art is more naturalistic and less stylized then Greek art. Greeks were most interested in idealism
Romans were more interested in realism.
Sunnis
It provided equality under the law.
Ancient Roman knowledge was preserved.
Ancient Greek knowledge was preserved.
Non-Muslim historical information was preserved
PERSIA
Reincarnation.
Hadith is an Arabic word that means 'saying' when said hadith that it means a saying of prophet Muhammad (PBUH). Its plural is Ahadith (that means sayings). Hadith science is the science that deals with study of prophet Muhammad (PBUH) sayings (or Ahadith) regarding their authenticity, ritual worships rules, morals, ...).
Jalal al-Din al-Suyuti describes hadith science as "the science of the principles by which the conditions of both the sanad, the chain of narration, and the matn, the text of the hadith, are known."
The Mycenaeans
B.Making the student think through issues
The Socratic teaching method is a form of inquiry and debate between two individuals with opposing view of points. It is a negative method of hypothesis elimination.
The Formation of the first Triumvirate