Lusitanic definitions of "Lusitanic" or "Lusitanian" may include medieval-to-modern Galicia, because the Portuguese people and Galician people share close linguistic and cultural ties, including pre-Roman Celtic ones. Modern Portuguese and the Galician language both derive from medieval Galician-Portuguese, and the term is a cultural classification more than a historic–geographical definition. Although, in Ancient Roman times, the Gallaeci were not part of Lusitania province, what became the Galician-Portuguese language developed from Vulgar Latin in Gallaecia, which comprised what is now Galicia, as well as north Portugal, the center of the development of post-Roman Portuguese culture. Later Portuguese use of the name "Lusitania"
The Sinking of the Lusitania that had begun circulating in the years before the film's release. Scholar Ulrich Merkl suggests that as a newspaperman, McCay was likely aware of Freud's widely reported work, though McCay never publicly acknowledged such an influence. "The Sinking of the Lusitania" was noted as a work of war propaganda, and is often called the longest work of animation of its time. The film is likely the earliest animated documentary. McCay's biographer, animator John Canemaker, called "The Sinking of the Lusitania" "a monumental work in the history of the animated film". Though it was admired by his animation contemporaries, Canemaker wrote