Answer:
World War.
Explanation:
First world war ended in 1918.
Seven years after their daughter's birth, they split up because Melba wants to be a reporter and work, and John wants a housewife. Melba goes to journalism school at Columbia and becomes a reporter.
Yes indeed, it is true, Aristotle was greek and a philosopher and he believed that the plantes move in perfect circles, which was part of the thinking of the aristotelian cosmology