In a republic, there isn't a direct vote for the leader.
Example: The United States is a republic.
People vote for a candidate (e.g., Trump), not directly for the Republican Party.
Even then, that vote doesn't directly elect the president.
The electoral college is the second stage, making it a republic, as representatives make the final decision.
Kings were removed due to the impracticality of controlling large land areas.
The land was split up.
The ruler called himself "Divus Augustus Kaiser."
"Divus" means divine.
The ruler claimed divinity because his adopted father was considered a god.
Literacy declined because it was expensive, limiting it to the wealthy.
The rise of Christianity shifted focus to the Bible and religious readings.
In times of conflict, the ruler doesn't adhere to agreements.