The death of Curly is an example of the law of club and fang. He learns that violence doesn't just come from men with clubs, it also comes from dogs with fangs.
There are many factors involved in the improvement in the life expectancy such as sanitation, housing, scientific research to cure many diseases and infections, education etc.
Historically it was the nineteenth and early twentieth century when all these improvements were made due to which the mortality rate decreased intensively in early and middle ages.
<span>ice caverns and rivers
Through the description of the land, the narrator describes "</span><span>A sunny pleasure-dome with caves of ice". It's a contradiction because even though it's really sunny, the caves are frozen. There is a river that also runs through the pleasure dome. </span>
