Question: During which United States national holiday was the Mothership Space Net Penthouse completed in 2014?
Context: Montgomery Ward Warehouse and Retail Store is a historic warehouse and retail building located at Baltimore, Maryland, United States.  It is a mammoth 8-story (plus penthouse) concrete structure and is roughly shaped like a squared-off number "4."  The front features a penthouse tower at the main entrance bay with a balcony and capped by a flagpole.  The building houses over 1200000 sqft of floor space flooded by light from approximately 1,000 large multi-paned, steel frame windows.  It was built about 1925 as a mail order and retail warehouse for Montgomery Ward adjacent to the railroad switch track and was one of nine large warehouses built by them in the United States. The Eighth was a federal holiday in the United States from 1828 until 1861.  It honored the Battle of New Orleans, which took place on January 8, 1815, with Tennessee's Andrew Jackson leading a successful battle against regular British soldiers and freed slaves.  The holiday was celebrated widely across the US South after this final battle in the War of 1812.  "The Eighth" became an official national holiday in 1828, following Jackson's election as President.  The Eighth continued as an official national holiday from 1828 until the advent of the American Civil War. The Day of German Unity (German: Tag der Deutschen Einheit ) is the national day of Germany, celebrated on 3 October as a public holiday.  It commemorates the anniversary of German reunification in 1990, when the goal of a united Germany that originated in the middle of the 19th century, was fulfilled again.  Therefore, the name addresses neither the re-union nor the union, but the unity of Germany.  The Day of German Unity on 3 October has been the German national holiday since 1990, when the reunification was formally completed. Saint-Jean-Baptiste Day (French: "Fête de la Saint-Jean-Baptiste" ), officially known in Quebec as the National Holiday, (French: "la fête nationale" ) is a holiday celebrated annually on June 24, the feast day of the Nativity of St. John the Baptist.  In Quebec, it is a public holiday with festivities occurring on June 23 and 24 which are publicly financed and organized by a "Comité organisateur de la fête nationale" (National Holiday Organizing Committee).  June 24 is also celebrated as a festival of French Canadian culture in other Canadian provinces and the United States. Thanksgiving Day is a national holiday celebrated in Canada, the United States, some of the Caribbean islands, and Liberia.  It began as a day of giving thanks for the blessing of the harvest and of the preceding year.  Similarly named festival holidays occur in Germany and Japan.  Thanksgiving is celebrated on the second Monday of October in Canada and on the fourth Thursday of November in the United States, and around the same part of the year in other places.  Although Thanksgiving has historical roots in religious and cultural traditions, it has long been celebrated as a secular holiday as well. Miss United States pageant is a pageant held in the United States for unmarried women between the ages of 20-29.  The pageant includes women selected to represent all 50 states, District of Columbia, American Samoa, Guam, Commonwealth of the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.  Miss United States is part of the system known as United States National Pageants, which has seven divisions starting at the age of 8: Little Miss United States, Miss Pre-Teen United States, Miss Jr.  Teen United States, Miss Teen United States, Miss United States, Ms. United States, and Ms. Woman United States.  Crown Garland LLC based in Bristol, Virginia is the official and exclusive licensee of the United States National Pageants trademarks.  In 2016, Miss United States organizers held the national pageant in Las Vegas where it initially took place for a 30th anniversary celebration with its sister pageant, Mrs. United States. Victory Day over Nazism in World War II (Ukrainian: День перемоги над нацизмом у Другій світовій війні ) or Victory Day (Ukrainian: День перемоги ) is a national holiday and a day off in Ukraine.  It was first celebrated on 9 May 2015 and follows the Day of Remembrance and Reconciliation on May 8 (which pays tribute to the victims of World War II and was also first celebrated in 2015).  The holiday replaced the Soviet "Victory Day", which was celebrated in the post-Soviet Union states, including Ukraine, until 2014 inclusive. King Holiday is an R&B/Hip-Hop single released on January 13, 1986 by the King Dream Chorus and Holiday Crew.  Composed by Phillip Jones, Kurtis Blow, Grandmaster Melle Mel and Bill Adler, it was released in honor of Martin Luther King, Jr.  Day, which was first celebrated as a national holiday in the United States on January 20, 1986.  All proceeds from the single were donated to the Martin Luther King Jr.  Center for Nonviolent Social Change.  The single peaked at No.30 on the "Billboard" Hot Black Singles chart. The P Funk Mothership, otherwise known as The Holy Mothership is the arcane space vehicle of Dr. Funkenstein a.k.a. George Clinton and his agents of Supergroovalisticprosifunkstication.  An integral part of the P Funk mythology, the Mothership existed both conceptually as a fictional vehicle of funk deliverance, and as a physical prop central to P Funk concerts.  Powered by unknown means, presumably The Funk and simple stagecraft, the Mothership appeared over the Planet Earth many times during the second half of the Twentieth century, and was even seen to physically land at a number of live music venues in the United States during the 1970s in order to disgorge its Funk to the people. The Mothership Space Net Penthouse is an aerial hammock in Moab, Utah, hand-woven from 14,000 feet of cordage and rigged by the Moab Monkeys, a group of more than 50 people spearheaded by slackliner Andy Lewis, during Thanksgiving 2014.
Answer: Thanksgiving