What do the earliest civilizations have in common? What does food have to do
with civilization?

Agriculture. The first similarity in the civilizations is agriculture. In every age, the individuals practiced some form of farming whether through farming, hunting, gathering or animal husbandry. They would look for plants and fruits to eat, and they would hunt animals.

All these civilizations had certain features in common. They built cities and invented forms of writing. They learned to make pottery and use metals. They domesticated animals, and they created fairly complex social structures with class systems. Food is an easy way to share one’s culture and express it through the belly neighboring tribes would collect together and join for feast to celebrate agriculture and life itself

ayatollah khomeini can best be described as the leader who declared iran to be an islamic republic.

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.