Conversation so far:
When did the Charles Taze Russell allegations of immoral conduct begin?
In 1897.
Who accused Charles Taze Russell of immoral conduct?
During the trial Mrs. Russell's attorney alleged that in 1894 Charles Taze Russell had engaged in improper intimacy with Rose Ball, by then a 25-year-old woman.
Did anyone believe Charles Taze Russell's wife, Maria?
What became of the allegation that Maria had against Charles Taze Russell?
The separation was granted in 1906, with Charles Taze Russell charged to pay alimony.
Who did Charles Taze Russell separate from?
Charles Taze Russell separated from his wife, Maria.

Question: Why did Charles and Maria separate?
Self-contained rewrite: Why did Charles Taze Russell and his wife Maria separate?