Conversation so far:
What period of history was th Jumbo article about?
1860
Do you know where Jumbo the elephant first came from?
East Africa
What was significant about Jumbo compared to other circus elephants?
Jumbo became a crowd favorite due to his size
Why was Jumbo grinding his tusks? Was he going crazy or sick?
Jumbo ground them down against the stonework of his enclosure.

Question: Was Jumbo notable for any particular circus acts?
Self-contained rewrite: Was Jumbo notable for any particular circus acts?