Conversation so far:
where does the monorail go in disney world
The Walt Disney World Monorail System features stations at the Transportation and Ticket Center, Disney's Polynesian Resort, the Magic Kingdom, Disney's Contemporary Resort, Epcot, and the Grand Floridian station.
what's the walt disney world monorail system's daily ridership
As of 2016, the Walt Disney World Monorail System is one of the most heavily used monorail systems in the world, with over 150,000 daily riders.

Question: what was the first day of operation
Self-contained rewrite: what was the walt disney world monorail system's first day of operation