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 make her less visible to enemy submarines. Clearly, there was no hope of disguising her identity, as her profile was so well known, and no attempt was made to paint out the ship's name at the bow. Captain Dow, apparently suffering from stress from operating his ship in the war zone, and after a significant "false flag" controversy, left the ship; Cunard later explained that he was "tired and really ill". He was replaced by Captain William Thomas Turner, who had previously commanded "Lusitania", "Mauretania", and "Aquitania" in the years before the war. On 17 April 1915, "Lusitania" left Liverpool