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"
Sinking of the RMS Lusitania the whereabouts of "Lusitania" by telephoning Cunard, who refused to give out any information and referred him to the Admiralty. At sea, the ships contacted "Lusitania" by radio, but did not have the codes used to communicate with merchant ships. Captain Daniel Dow of "Lusitania" refused to give his own position except in code, and since he was, in any case, some distance from the positions he gave, continued to Liverpool unescorted. It seems that, in response to this new submarine threat, some alterations were made to "Lusitania" and her operation. She was ordered not to fly any flags in