Question: When was this uncovered outdoor pedestrian shopping and dining mall in which the Burlington Montgomery Ward Building is found first conceived?

Context paragraphs:
Church Street Marketplace: The Church Street Marketplace is an uncovered outdoor pedestrian shopping and dining mall in Burlington, Vermont, consisting of the four blocks of Church Street between Main and Pearl Streets.  The mall was initially conceived in 1958 and was built in 1980-81 to a design by Carr, Lynch Associates of Cambridge, Massachusetts.  It encompasses about 86 storefronts and is managed by the Church Street Marketplace Commission.

Kalamazoo Mall: The Kalamazoo Mall, the first outdoor pedestrian shopping mall in the United States, is a section of Burdick Street in downtown Kalamazoo, Michigan.

Virginia Building: The Virginia Building, also known as the Strollway Center and Montgomery Ward Building, is a historic commercial building located at the corner of 9th and Cherry Streets in Downtown Columbia, Columbia, Missouri.  It was originally built in 1911 to house one of the first urban Montgomery Ward department stores.  It is a two-story building with a flat roof and gold brick walls.  Today the building houses several local businesses including, the Cherry Street Artisan and Columbia Photo.

Montgomery Ward Building (Burlington, Vermont): The Burlington Montgomery Ward Building is a historic former department store building located at 52-54 Church Street, between Cherry and Bank Streets, in the Church Street Marketplace of downtown Burlington, Vermont.  Built in 1929, it is a fine example of Classical Revival architecture, and is the best-preserved of the small number of original Montgomery Ward stores built by that retailer in the state.  It was listed on the National Register of Historic Places in 1991.

Century Mall: Century Mall was an indoor shopping mall located on the southeast corner of Broadway (Indiana 53) and US 30 in Merrillville, Indiana.  The mall opened in 1979 with anchor stores Goldblatt's and Montgomery Ward.  Competitive and economic factors sent the mall into steady decline and national retail chains left throughout the 1990s until the mall was ultimately sold for redevelopment in 2001 then closed and largely demolished in 2002.  The mall's interior stores also suffered following Montgomery Ward's remodeling.  Montgomery Ward removed their mall entrance and told customers that no stores remained, when in reality close to a dozen stores were still open.  A strip mall development named Century Plaza now occupies the land and some of the former anchor store buildings.

Montgomery Ward Building (Evansville, Indiana): The Montgomery Ward Building (also known as the Old Montgomery Ward Building) is a historic department store building located at 517-19 Main Street in Downtown Evansville, Indiana.  It has three stories and was completed in 1933 in the Georgian Revival style of architecture.

Main Mall: The Main Mall was an outdoor pedestrian shopping plaza in downtown Poughkeepsie, New York, which was in existence from 1973 until 2001.  An urban renewal project designed with the intention of stopping the decline of the central business district of downtown Poughkeepsie, the mall was created by blocking off a section of Main Street (from Market to Catherine/Academy Streets) to automobile traffic.  The growth of Poughkeepsie's immediate suburbs, along with the decline of the City of Poughkeepsie, doomed the project not long after its construction.

Montgomery Park (Portland, Oregon): Montgomery Park is an office building and former Montgomery Ward mail-order catalog warehouse and department store located in Portland, Oregon, United States, built in 1920.  It is listed on the National Register of Historic Places under its historic name Montgomery Ward & Company Building.  The building is located on property once used for the Lewis and Clark Centennial Exposition, of 1905.  It was occupied by Montgomery Ward from 1920 until 1985, although the majority of the company's operations at this location ended in 1982.  The building is the second largest office building in Portland with 577339 ft2 .

Montgomery Ward Building (Idaho Falls, Idaho): The Montgomery Ward Building or Montgomery Ward and Company Department Store is a historic department store building in downtown Idaho Falls, Idaho, United States.  It currently houses Happy Chinese Restaurant and a number of vacant and occupied offices in the second floor.

Old Town Mall: The Old Town Mall or Oldtown Mall is an abandoned outdoor pedestrian shopping mall in the Old Town neighborhood of Baltimore, Maryland.  The mall contains 64 stores, the majority of which are closed.  The area has seen many periods of revival and decline in the past 200 years since its opening, and there are currently plans by developers in the area to revitalize the mall.

Supporting paragraphs: Montgomery Ward Building (Burlington, Vermont) Church Street Marketplace
Answer: 1958