Answer:
War, Oppression, and Natural disaster
Explanation:
I don't think it's climate change
Long work hours and six-day weeks, workers worked outside in all seasons, exposed to rain and snow, extreme heat and extreme cold plus they had a lot more work related deaths compared to now.
Answer: 29 rulers
Detailed Explanation:
Rome had 29 different rulers between A.D. 180 and A.D. 284.
It is called the doctrine of stare decisis.
Ballroom <span>dancing gained popularity</span>