Conversation so far:
who wrote the book of nehemiah in the old testament
The combined book Ezra–Nehemiah was attributed to Ezra himself; according to a rabbinic tradition, however, Nehemiah was the real author.
what is the history of the book of nehemiah
The book of Nehemiah was included with the Book of Ezra until the 16th century.
when do the events of the book of nehemiah happen
The events of Nehemiah take place in the second half of the 5th century BC.

Question: what happens in the book
Self-contained rewrite: what happens in the book of nehemiah