Conversation so far:
What does the article say about the Exile?
Zahir Shah lived in exile in Italy for twenty-nine years in a villa.
why did he live in Exile?
He was prohibited from returning to Afghanistan during the late 1970s.
What did he do while living in exile?
he spent his time playing golf and chess, as well as tending to his garden.
What made him come out of exile?
CANNOTANSWER.

Question: What else happened in 1973?
Self-contained rewrite: Besides Zahir Shah living in exile, did anything else happen in 1973?