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"
RMS Lusitania use plasterwork to create interiors whereas Peto made extensive use of wooden panelling, with the result that the overall impression given by "Lusitania" was brighter than "Mauretania". "Lusitania"s designs proved the more popular. The ship's passenger accommodation was spread across six decks; from the top deck down to the waterline they were Boat Deck (A Deck), the Promenade Deck (B Deck), the Shelter Deck (C Deck), the Upper Deck (D Deck), the Main Deck (E Deck) and the Lower Deck (F Deck), with each of the three passenger classes being allotted their own space on the ship. As seen aboard