Admiralty in the 16th century has organized the fleet into squadrons from at early 13th century and certainly during the 16th century. In 1560 three squadrons were operating in the Channel, Irish Sea and North Sea Until the 16th century, admirals were high officials under kings, and were charged with protecting the realm from sea attack. The English navy's Narrow Seas Squadron also called as the Eastern Squadron mainly operated in the two seas which laying between England and Kingdom of France (the English Channel particularly the Straits of Dover) and England and the Spanish Netherlands later the Dutch Republic (the southern North Sea). Include:
European Day of Radiology established in 2011. The first and only European Day of Radiology was held on February 10, 2011 to commemorate the anniversary of Röntgen's death. European Day of Radiology The European Day of Radiology (EDoR) is an annual day of action that will take place for the first time on February 10, 2011. The day is an initiative of the European Society of Radiology, an organisation that represents the interests of radiology and its practitioners throughout Europe and also hosts the European Congress of Radiology. The European Day of Radiology will be held for the first time on February 10, 2011,