It was a gradual process. It most expanded by the introduction of Greek philosphy. !
Economic causes of wars were most important. Divisions over religious principles and authority underlay most wars, hope this helped <3
The authority of the Roman king was called Emperor, it reflects his taking of the title Augustus or Caesar. Another title often used was imperator, originally a military honorific. Early Emperors often used the term princeps (first citizen). I'm pretty sure I gave the correct answer if you asked what was the term was for Roman King.
A matrilineal society is one in which the lineage of an individual is based upon the mother's lineage. Therefore, descent is traced through the mother and the maternal ancestors. This has implications in regards to inheritance of property and/or titles.