Question: Michkey's Toontown Fair was closed and Storybrook Circus opened, when did that happen?
About the article "Magic Kingdom", section "Storybook Circus".

Candidate passages:
At the Magic Kingdom, Mickey's Toontown Fair (now Storybook Circus) initially opened as Mickey's Birthdayland on June 18, 1988.
It became Mickey's Starland on May 26, 1990, and was briefly renamed Mickey's Toyland in late 1995.
The land was closed in early 1996 for an extensive refurbishment, and on October 1, 1996, it reopened as "Mickey's Toontown Fair" for the park's 25th anniversary.
Its storyline portrayed the land as the holiday home for the characters who reside at Mickey's Toontown in California.
Mickey's Toontown Fair was closed on February 11, 2011 in order to build the Fantasyland extension.
Some elements of Mickey's Toontown Fair have been demolished and others have been re-themed to a new Storybook Circus area.
The Dumbo the Flying Elephant ride was removed from Fantasyland and rebuilt in Storybook Circus, the new version doubling the capacity of the old ride and incorporating an interactive queue.
The Barnstormer at Goofy's Wiseacre Farm has been re-themed to The Barnstormer featuring Goofy as the Great Goofini.
The first half of Storybook Circus opened on March 12, 2012, which included the newly themed "The Great Goofini", the Storybook Circus train station which was completely rebuilt and also one half of the new Dumbo ride.
The second phase of Storybook Circus, including the second half of Dumbo, the indoor queue area, and the Casey Jr Splash 'n' Soak Station opened on July 2012. 
At the Magic Kingdom, Mickey's Toontown Fair initially opened as Mickey's Birthdayland on June 18, 1988.
It became Mickey's Starland on May 26, 1990, and Mickey's Toontown Fair on October 1, 1996.
Its storyline portrayed the land as the holiday home for the characters who reside at Mickey's Toontown in California.
This attraction existed in the land since its opening as Mickey's Birthdayland in 1988.
The house changed several times since its opening and became barely recognizable when compared to the original.
Magic Kingdom's Mickey's Toontown Fair closed permanently in February 2011 in order to make way for the expansion of Fantasyland.
Mickey's Country House also closed permanently at this time. 
Olympia opened its doors on 26 December 1886.
The management of the venue were sure that the Royal Tournament would move from the Agricultural Hall (now the Business Design Centre).
However, this did not happen which put Olympia in financial difficulty.
They were dealt a lucky break when the Paris winter venue of the Hippodrome Circus was closed for repair, and a London fixture was just what they were looking for. 
Part of Fantasyland, Storybook Circus is located at the former site of Mickey's Toontown Fair, and is based on elements from "Dumbo" and the Mickey Mouse universe.
Attractions include The Barnstormer and Dumbo the Flying Elephant, which was removed from its former location on January 8, 2012.
Also included is the Casey Jr. Splash n' Soak Station (a water play area themed to Casey Jr., the train from "Dumbo").
Storybook Circus began soft openings on March 12, 2012, with more parts opening on March 31.
Mickey's Toontown Fair closed permanently on February 11, 2011, to make way for Storybook Circus.
Some elements of Mickey's Toontown Fair were demolished, and others were re-themed to fit the circus concept.
An expanded Dumbo the Flying Elephant ride was built, with an interactive queue, and a second Dumbo ride was built next to it, in order to increase capacity.
The Barnstormer at Goofy's Wiseacre Farm was re-themed to "The Great Goofini".
A big top area was built for meet-and-greets, called Pete's Silly Sideshow.
This attraction features Goofy as a stuntman, Minnie as a magician, Daisy as a fortune-teller, and Donald as a snake-charmer.
 featuring the Great Goofini (2011–).
Magic Kingdom's Fantasyland is currently undergoing a large expansion and renovation.
Mickey's Toontown Fair closed permanently on February 12, 2011 in order to make way for the expansion.
Some elements of Mickey's Toontown Fair have been demolished and others have been re-themed to a new Storybook Circus area.
The Barnstormer at Goofy's Wiseacre Farm was re-themed to The Barnstormer featuring the Great Goofini.
"The New Fantasyland will be constructed in phases with most new experiences open by 2013."