Question: Xokonoschtleti Gomora has pushed for over thirty years for the return of Montezuma's headdress which is made of swen-on gold detailing and what?
Context: Xokonoschtletl Gómora (] ; 17 February 1951, Mexico City) is a Mexican dancer who performs to Pre-Hispanic traditional music, a writer, lecturer, and civic activist.  He was commissioned by the United Nations for the Frente Mexicano Pro Derechos Humanos (English: Mexican Front for Human Rights) to promote the protection of Mexican cultural heritage.  He is best known for leading the Asociación Civil Internacional Yankuik Anahuak (International Civil Association Yankuik Anahuak) and because for over thirty years he has pushed for the return of a quetzal feather headdress (Nahuatl: "quetzalpanecáyotl") known as Montezuma's headdress currently located in the Vienna Museum of Ethnology (German: "Museum für Völkerkunde"). Good Vibrations: Thirty Years of The Beach Boys is a 1993 boxed set released by Capitol Records which collects tracks spanning The Beach Boys' entire career to that point on four CDs.  A fifth disc contains mostly studio session tracks, complete vocal and instrumental tracks, and rare live performances.  The set also includes a car window decal.  Though it never charted, "Good Vibrations: Thirty Years of The Beach Boys" went gold in the US just over four months after its release. The Over 30s v Under 30s was a first-class cricket fixture played sporadically between 1851 and 1949.  The teams were, as the name of the fixture suggests, made up of players over thirty years of age and under thirty years of age.  The first match was held in 1851 at Lord's with the Over 30s winning the match by 7 wickets.  The fixture was next held in 1879, with the fixture played in the following three seasons.  The fixture was revived in 1901, before the final two matches of the fixture were played in 1937 and 1949.  Of the eight fixtures played, the Over 30s won six and the Under 30s won two. Moctezuma's headdress is a featherwork crown (Nahuatl: "quetzalāpanecayōtl" ] ) which tradition holds belonged to Moctezuma II, the Aztec emperor at the time of the Spanish Conquest.  However, its provenance is uncertain, and even its identity as a headdress has been questioned.  It is made of quetzal and other feathers with sewn-on gold detailing.  It is now in the Museum of Ethnology, Vienna, and is a source of dispute between Austria and Mexico, as no similar pieces remain in Mexico.  Restoration efforts reignited this dispute in 2012. My Thirty Years Backstairs at the White House is a 1961 autobiographical novel by Lillian Rogers Parks (with Frances Spatz Leighton).  The memoir was based on Parks' recollections of thirty years (1931-1961) as a seamstress in the White House (the administrations of Hoover, Roosevelt, Truman, and Eisenhower) and on childhood memories of her mother's 30 years of domestic service (Margaret 'Maggie' Rogers was head housemaid at the White House from 1909-1939, spanning the administrations of Taft, Wilson, Harding, Coolidge, Hoover, and Roosevelt). The Swedish invasion of the Holy Roman Empire, or the Swedish Intervention in the Thirty Years' War is a historically accepted division of the Thirty Years' War.  It was a military conflict that took place between 1630 and 1635, during the course of the Thirty Years' War.  It was a major turning point of the war, as during this time, the Protestant cause, previously on the verge of defeat, won several major victories and snatched victory away from the Habsburg-Catholic coalition.  It is often considered to be an independent conflict by most historians. Federalist No. 62 is an essay by James Madison, the sixty-second of "The Federalist Papers".  It was published on February 27, 1788 under the pseudonym Publius, the name under which all "The Federalist" papers were published.  This is the first of two essays by Madison detailing, and seeking to justify, the organization of the United States Senate.  It is titled, "The Senate."  Five key considerations are brought up in the introductory paragraph, of which only three and a part of the fourth are discussed in Federalist No. 62.  Madison's thoughts on this subject are completed in Federalist No. 63: 1.  The qualifications of senators (thirty years of age or older/citizen for nine years).  2.  The appointment of Senators by the State legislatures - later changed to direct popular vote by the 17th amendment in 1913.  3.  The equality of representation in the Senate.  And 4, the number of senators. The Physician Preparing an Elixir is a miniature on a folio from an illustrated manuscript copy, now in the Metropolitan Museum of Art in New York of "De Materia Medica", a large herbal or work on the (mostly) medical uses of plants originally written by the ancient Greco-Roman physician, Pedanius Dioscorides, in the first century AD.  This page of the manuscript, dated 1224 AD, is made from paper, sized 24.8 cm wide and 33.2 cm long, and is decorated by opaque watercolor, ink, and gold detailing.  It is visually split into three horizontal portions from the top of the page to the bottom; the top of the page is dominated by two lines of Arabic script, followed by the image and then five more lines of text in Arabic.  The writing below the image is predominantly black with the exception of one line, which is written in red ink and is therefore highlighted to the viewer.  The page is usually not on display. Hakkapeliittain marssi ("March of the Hakkapeliittas") or Finska Rytteriets Marsch "in Swedish" ("March of the Finnish Cavalry"), also known as Suomalaisen ratsuväen marssi 30-vuotisessa sodassa or Finska rytteriets marsch i trettioåriga kriget ("March of the Finnish cavalry in 30 years war") is one of the Finnish and Swedish cavalry's battle marches and one of the oldest currently played.  It originates from the times of Thirty Years' War when Finnish cavalrymen were known as hakkapeliitta and it became popular with military bands.  It was given lyrics (in Swedish) in 1872 by Zacharias Topelius and is commonly known as the "March of the Finnish Cavalry during the Thirty Years War".  The Prussian army officially adopted it for use in 1891; it is now a standard of the German marching band repertoire. Wallenstein is a 1920 historical novel by German author Alfred Döblin.  Set in Central Europe during the Thirty Years War, the novel's plot is organized around the polar figures of Ferdinand II, Holy Roman Emperor, on the one hand, and Albrecht von Wallenstein, on the other.  Döblin's approach to narrating the war differed from prevailing historiography in that, rather than interpreting the Thirty Years War primarily as a religious conflict, he portrays it critically as the absurd consequence of a combination of national-political, financial, and individual psychological factors.  Döblin saw a strong similarity between the Thirty Years War and the First World War, during which he wrote "Wallenstein".  The novel is counted among the most innovative and significant historical novels in the German literary tradition.  In large part, contemporary critics found the novel to be difficult, dense, and chaotic—a reception Döblin discussed in his 1921 essay "The Epic Writer, His Material, and Criticism"—yet writers such as Lion Feuchtwanger, Franz Blei, and Herbert Ihering praised "Wallenstein" for its formal innovation, poetic language, epic scope, and bold departure from other German writing of the time.  Despite the novel's difficulty, the critical consensus was that "Wallenstein" was a major achievement and confirmed the promise seen in Döblin's earlier historical novel, "The Three Leaps of Wang Lun".
Answer: quetzal and other feathers