Question: In what year was an ordnance passed banning music in the French Quarter between 8 and 9 in the evening?
About the article "Bourbon Street", section "Issues".

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The Banning Library District operates the Banning Public Library, which was established in 1916 as the Banning Unified School District Library District and became an independent special district in 2005. 
In the British Isles, an Ordnance Datum or OD is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps.
A spot height may be expressed as AOD for "above ordnance datum".
Usually mean sea level (MSL) is used for the datum.
In particular:  In Great Britain, OD for the Ordnance Survey is ODN (Ordnance Datum Newlyn), defined as the MSL at Newlyn in Cornwall between 1915 and 1921.
Prior to 1921, OD was taken from the level of the Victoria Dock, Liverpool (ODL).
The difference between the different data varies across the country; full details are available from the Ordnance Survey website (below).
In Northern Ireland, OD for the Ordnance Survey of Northern Ireland is Belfast Ordnance Datum, the MSL at Clarendon Lock, Belfast between 1951 and 1956.
In the Republic of Ireland, OD for the Ordnance Survey of Ireland is Malin Ordnance Datum: the MSL at Portmoor Pier, Malin Head, County Donegal, between 1960 and 1969.
* Prior to 1970, Poolbeg Ordnance Datum was used: the low water of spring tide at Poolbeg lighthouse, Dublin, on 8 April 1837.
Poolbeg OD was about 2.7 metres lower than Malin OD.  
Phineas Banning (August 19, 1830 – March 8, 1885) was an American businessman, financier and entrepreneur.
Known as "The Father of the Port of Los Angeles," he was one of the founders of the town of Wilmington, which was named for his birthplace.
His drive and ambition laid the foundations for what would become one of the busiest ports in the world.
Besides operating a freighting business, Banning operated a stage coach line between San Pedro and Wilmington, and later between Banning, California, which was named in his honor, and Yuma, Arizona.
During the Civil War, he ceded land to the Union Army to build a fort at Wilmington, the Drum Barracks.
He was appointed a Brigadier General of the First Brigade of the militia, and used the title of general for the rest of his life. 
From 1946 to 1999, Ordnance Survey International and its predecessors built the Ordnance Survey International Collection (formerly the Ordnance Survey International Library), an archive of air photography, map and survey records derived from its mapping activities outside the UK.
The agency was closed in 2001.
Responsibility for its archive passed to The National Archives c2003; it was dispersed shortly thereafter. 
In September 2011, the North Carolina General Assembly passed North Carolina Senate Bill 514 (2011) which put an amendment banning any form of same-sex unions on the primary election ballot in May 2012.
The measure passed on a vote of 30-16 in the state Senate and a vote of 74-42 in the state House.
Voters approved the amendment by 61% to 39% on May 8, 2012.
North Carolina was the 30th state, and the last of the former Confederate states, to adopt a constitutional amendment banning same-sex marriage.
The amendment added to Section XVI of the North Carolina Constitution: