Question: Lambic is brewed in Brussels at a brewery founded in what year?
Context: Oakleaf was a Gosport-based brewery founded in 2000 in Gosport, Hampshire, England.  It brewed cask ales and bottled ales until filing for Administration in August 2016 due to the rise of microbreweries.  In September 2016, the brewery was purchased, staff rescued from administration and the new brewery, Fallen Acorn Brewing Co, began. Brasserie-Brouwerij Cantillon (or Cantillon Brewery) is a small Belgian traditional family brewery based in Anderlecht, Brussels and founded in 1900.  They exclusively brew lambic beers. Coigneau is a Belgian variety of hop which was massively cultivated in the Flemish Aalst-Asse area near Brussels in the nineteenth and first half of the twentieth century.  Because of the light bitterness the Coigneau was during a considerable period of time the favorite hop used for Lambic beer brewed in the Pajottenland region of Belgium (southwest of Brussels). Lambic is a type of beer brewed in the Pajottenland region of Belgium southwest of Brussels and in Brussels itself at the Cantillon Brewery.  Lambic beers include gueuze and kriek lambic.  Lambic differs from most other beers in that it is fermented through exposure to wild yeasts and bacteria native to the Zenne valley, as opposed to exposure to carefully cultivated strains of brewer's yeast.  This process gives the beer its distinctive flavour: dry, vinous, and cidery, usually with a sour aftertaste. Starobrno Brewery (in Czech: Pivovar Starobrno) is a Czech brewery located in the city of Brno.  It was built as a successor of the brewery founded in 1325, as a part of Cistercian convent.  The brewery was named "Starobrno Brewery" only in the second half of the 19th century.  In 2009, Starobrno Brewery produced more than one million hectoliters of beer.  The same year, the brewery merged with the Royal Brewery of Krušovice and became a part of the Dutch brewing company Heineken. Żywiec Brewery (] ) is a brewery founded in 1856, in Żywiec, Poland, then part of Austria-Hungary.  It was nationalised after the Second World War.  Grupa Żywiec S.A. consists of five main breweries: Żywiec Brewery, Elbrewery, Leżajsk, Warka Brewery and Cieszyn Brewery.  Currently the Dutch Heineken Group (Heineken International Beheer B.V.), with a 61% shareholding, has control over major operations.  The brewery has the capacity of producing 5 million hls a year, making it the largest brewery in Grupa Żywiec. Thwaites Brewery is a regional brewery founded in 1807 by Daniel Thwaites in Blackburn, Lancashire, England.  The firm still operates from its original town centre site, although the original brewery was demolished in 2011, and part of its beer business was sold to Marston's in March 2015.  Today, Thwaites still produces beer but it in much smaller quantities as it only sells to its own estate of pubs, inns and hotels.  In 1999, the Mitchell brewery in Lancaster closed down, and was bought in part by Thwaites.  Lancaster Bomber has since been available from Thwaites public houses after being acquired in the takeover.  Lancaster Bomber is now brewed by Marston's, as is Wainwright, the other top-selling Thwaite's beer. Belle-Vue Brewery is a brewery founded in 1913 in Molenbeek, Brussels by Philémon Vandenstock from nearby Itterbeek, which lies in a region known for its lambic type of beer.  Belle-Vue is now owned by Anheuser–Busch InBev.  A variety of Belle-Vue lambic and fruit beers are produced at AB InBev's facilities located in Sint-Pieters-Leeuw. Bavaria – St. Pauli Brewery (Bavaria - St. Pauli - Brauerei AG) was a German brewery founded in 1922 from the merger of Bavaria Brauerei AG (founded 1897) and St. Pauli Actien-Brauerei (founded 1862) in Hamburg.  Its brands are now brewed by Holsten. Boon Brewery (Brouwerij Boon) is a Belgian brewery situated in Lembeek, near Brussels, that mainly produces geuze and kriek beer of a fairly traditional lambic variety, but using distinctly modern brewing techniques and equipment.  Other products of the brewery including Faro beer and Duivelsbier, the traditional beer of Halle.
Answer: 1900