The Ponyville Carnival & Fair was a travelling carnival, run by Hullabaloo. It started on the 20th (change if wrong) of August, and ended (very very early) September 4th.
Things That Happened
Hullabaloo, along with Barnabas, ran the show, but Hullabaloo was more than he seemed. He could manifest himself anywhere within the carnival, and would grant any pony nontransferable wishes... for a price. This price usually involved a major sacrifice on the part of the wish receiving pony.