The Question and Answer section for The Good Earth is a great resource to ask questions, find answers, and discuss the novel.
The birth of a daughter was a sign of bad luck. Daughters were seen as an economic drain. They take up space and resources until they can be married off.
We see clearly too the commodification of women in this chapter. We learn that O-lan was sold so that her parents could return to their land, and it appears that now the only way Wang Lung and his family might return to their land is by selling...
Earth completes one rotation on its axis every 24 hours. At the equator Earth rotates 1,000 miles per hour.