Some context: The indigenous peoples of the Americas are the pre-Columbian peoples of the Americas and their descendants. Although some indigenous peoples of the Americas were traditionally hunter-gatherers--and many, especially in the Amazon basin, still are--many groups practiced aquaculture and agriculture. The impact of their agricultural endowment to the world is a testament to their time and work in reshaping and cultivating the flora indigenous to the Americas. Although some societies depended heavily on agriculture, others practiced a mix of farming, hunting and gathering.
Indigenas or pueblos indigenas ("indigenous peoples") is a common term in Spanish-speaking countries, and pueblos nativos or nativos (lit. "native peoples") may also be heard, while aborigen (aborigine) is used in Argentina, and pueblos aborigenes (aboriginal peoples) is common in Chile. The term "Amerindian" (short for "'Indians of the Americas") is used in Quebec, the Guianas, and the English-speaking Caribbean. In Brazil, indigenas or povos indigenas are common if formal-sounding designations, while indio is still the more often-heard term (the noun for the Indian nationality being indiano), and aborigene and nativo being rarely used in Amerindian-specific contexts (e.g. aborigene is usually understood as the ethnonym for Indigenous Australians). Indigenous peoples are commonly known in Canada as Aboriginal peoples, which includes not only First Nations and Arctic Inuit, but also the minority population of First Nations-European mixed-race Metis people who identify culturally and ethnically with indigenous peoplehood. This is contrasted, for instance, to the American Indian-European mixed-race mestizos of Hispanic America (caboclos in Brazil) who, with their larger population (in most Latin American countries constituting either outright majorities, pluralities, or at the least large minorities), identify largely as a new ethnic group distinct from both Europeans and Indigenous Americans, but still considering themselves a subset of the European-derived Hispanic or Brazilian peoplehood in culture and ethnicity (cf. ladinos).  Indigenous peoples of the United States are commonly known as Native Americans or American Indians, and Alaska Natives.  Application of the term "Indian" originated with Christopher Columbus, who, in his search for India, thought that he had arrived in the East Indies. Eventually, those islands came to be known as the "West Indies", a name still used. This led to the blanket term "Indies" and "Indians" (Spanish indios, Portuguese indios) for the indigenous inhabitants, which implied some kind of racial or cultural unity among the indigenous peoples of the Americas. This unifying concept, codified in law, religion, and politics, was not originally accepted by the myriad groups of indigenous peoples themselves, but has since been embraced by many over the last two centuries. Even though the term "Indian" generally does not include the culturally and linguistically distinct indigenous peoples of the Arctic regions of the Americas--such as the Aleuts, Inuit, or Yupik peoples, who entered the continent as a second more recent wave of migration several thousand years before, and have much more recent genetic and cultural commonalities with the aboriginal peoples of the Asiatic Arctic Russian Far East--these groups are nonetheless considered "indigenous peoples of the Americas". The Portuguese and Spanish equivalents to Indian, nevertheless, could be used to mean any hunter-gatherer or full-blooded Indigenous person, particularly to continents other than Europe or Africa--for example, indios filipinos.
Why did he use the term Indian?
A: Columbus, who, in his search for India, thought that he had arrived in the East Indies.
Some context: Tori Amos (born Myra Ellen Amos, August 22, 1963) is an American singer-songwriter, pianist, and composer. She is a classically trained musician with a mezzo-soprano vocal range. Having already begun composing instrumental pieces on piano, Amos won a full scholarship to the Peabody Institute at Johns Hopkins University at the age of five, the youngest person ever to have been admitted. She was expelled at the age of eleven for what Rolling Stone described as "musical insubordination.
With her Atlantic contract fulfilled after a 15-year stint, Amos signed to Epic in late 2001. In October 2002, Amos released Scarlet's Walk, another concept album. Described as a "sonic novel", the album explores Amos's alter ego, Scarlet, intertwined with her cross-country concert tour following 9/11. Through the songs, Amos explores such topics as the history of America, American people, Native American history, pornography, masochism, homophobia and misogyny. The album had a strong debut at No. 7 on the Billboard 200. Scarlet's Walk is Amos's last album to date to reach certified gold status from the RIAA.  Not long after Amos was ensconced with her new label, she received unsettling news when Polly Anthony resigned as president of Epic Records in 2003. Anthony had been one of the primary reasons Amos signed with the label and as a result of her resignation, Amos formed the Bridge Entertainment Group. Further trouble for Amos occurred the following year when her label, Epic/Sony Music Entertainment, merged with BMG Entertainment as a result of the industry's decline. Amos would later hint in interviews that during the creation of her next album, those in charge at the label following the aforementioned merger were interested "only in making money", the effects of which on the album have not been disclosed.  Amos released two more albums with the label, The Beekeeper (2005) and American Doll Posse (2007). Both albums received generally favorable reviews. The Beekeeper was conceptually influenced by the ancient art of beekeeping, which she considered a source of female inspiration and empowerment. Through extensive study, Amos also wove in the stories of the Gnostic gospels and the removal of women from a position of power within the Christian church to create an album based largely on religion and politics. The album debuted at No. 5 on the Billboard 200, placing her in an elite group of women who have secured five or more US Top 10 album debuts. While the newly merged label was present throughout the production process of The Beekeeper, Amos and her crew nearly completed her next project, American Doll Posse, before inviting the label to listen to it. American Doll Posse, another concept album, is fashioned around a group of girls (the "posse") who are used as a theme of alter-egos of Amos's. Musically and stylistically, the album saw Amos return to a more confrontational nature. Like its predecessor, American Doll Posse debuted at No. 5 on the Billboard 200.  During her tenure with Epic Records, Amos also released a retrospective collection titled Tales of a Librarian (2003) through her former label, Atlantic Records; a two-disc DVD set Fade to Red (2006) containing most of Amos's solo music videos, released through the Warner Bros. reissue imprint Rhino; a five disc box set titled A Piano: The Collection (2006), celebrating Amos's 15-year solo career through remastered album tracks, remixes, alternate mixes, demos, and a string of unreleased songs from album recording sessions, also released through Rhino; and numerous official bootlegs from two world tours, The Original Bootlegs (2005) and Legs & Boots (2007) through Epic Records.
Did Amos release any albums during these years?
A:
In October 2002, Amos released Scarlet's Walk, another concept album.