Conversation so far:
What happened regardingThea Trinidad in 2011?
In late August 2011, Rosita traveled to Mexico to attend an event held by the Consejo Mundial de Lucha Libre (CMLL) promotion.
what was the event that Rosita traveled to in August 2011?
The event was an event held by the Consejo Mundial de Lucha Libre (CMLL) promotion.

Question: What was the independent circuit?
Self-contained rewrite: What was the independent circuit?