During the naval expansion of Aegina during the Archaic Period, Kydonia was an ideal maritime stop for Aegina's fleet on its way to other Mediterranean ports controlled by the emerging sea-power Aegina.

During the 19th century, the development of mines led to a new type of naval warfare.

During World War II he taught naval personnel navigation at Northern Arizona University.

During wartime, a shipping convoy will have a ranking officer — sometimes an active-duty naval officer, at other times a civilian master or retired naval officer — designated as the convoy commodore.

During a naval campaign of 1339, and again in 1377, the town was raided and burnt by the French, and seems then to have gone into a decline.

During World War I, the United States Navy acquired large numbers of privately owned and commercial ships and craft for use as patrol vessels, mine warfare vessels, and various types of naval auxiliary ships, some of them with identical names.

During the 19th century, many maritime nations established hydrographic offices to provide means for improving the navigation of naval and merchant vessels by providing nautical publications, nautical charts, and other navigational services.

During the 19th century, after Schleswig-Holstein had come under the government of Prussia ( from 1871 the German Empire ) following the Second Schleswig War in 1864, a combination of naval interests — the German navy wanted to link its bases in the Baltic and the North Sea without the need to sail around Denmark — and commercial pressure encouraged the development of a new canal.

During this period, together with his uncle, he took part in many naval wars of the Ottoman Empire against Spain, the Republic of Genoa and the Republic of Venice, including the First Battle of Lepanto ( Battle of Zonchio ) in 1499 and Second Battle of Lepanto ( Battle of Modon ) in 1500.

During the Cultural Revolution, a number of top naval commissars and commanders were purged, and naval forces were used to suppress a revolt in Wuhan in July 1967, but the service largely avoided the turmoil affecting the country.

During the research for his dual biography of Scott and Roald Amundsen, polar historian Roland Huntford investigated a possible scandal in Scott's early naval career, related to the period 1889 – 90 when Scott was a lieutenant on.

During the 15th century, China's Ming Dynasty assembled one of the largest and most powerful naval fleet in the world for the diplomatic and power projection voyages of Zheng He.

During this period the island was strongly garrisoned by regular British regimental troops and by the local St Helena Regiment, with naval shipping circling the island.

During the Hellenistic period, the island was a major naval base for the Ptolemaic Egypt.

During World War I many Shetlanders served in the Gordon Highlanders, a further 3, 000 served in the Merchant Navy and more than 1500 in a special local naval reserve.

During World War II a Norwegian naval unit nicknamed the " Shetland Bus " was established by the Special Operations Executive in the autumn of 1940 with a base first at Lunna and later in Scalloway to conduct operations around the coast of Norway.

During the Punic Wars of the 3rd century BC, the harbour at Ostia became a key naval base.

During the decade, Themistocles continued to advocate the expansion of Athenian naval power.

During World War II United States naval forces employed fast wooden PT boats in the South Pacific in a number of roles in addition to the originally envisioned one of torpedo attack.

During the Second World War, the historic city was largely free from attack, the only aggressive effort of note being Operation Bowler, a precision strike on the German naval operations there in 1945.

During the early months of 1781, British and American forces began concentrating in Virginia, a state that had previously not experienced more than naval raids.

During the closing stages of the Iran-Iraq War the United States Navy began conducting operations in the Persian Gulf to protect US-flagged ships from attack by Iranian naval forces.

During these first days of the trial I didn't have as much time to commiserate with Viola as I should have liked.

During the latter days of November to the day of Brown's execution, it seems that most Rhode Islanders did not concur in `` E. B.'s '' suggestion.

During the first few days of wearing the appliance and immediately following each adjustment, Susan may have a slight discomfort or soreness, but after a short time this will disappear.

During these skirmishes Zurlauben fell mortally wounded, and died two days later.

During his highschool days in Galatasaray High School ( and later in Şişli Terakki High School ) he formed his first band, Kafadarlar (" The Buddies "), allegedly upon seeing Erkin Koray's band performing, all students of Deutsche Schule Istanbul ( İstanbul Alman Lisesi ), a nearby highschool.

During the days of the Roman Empire, the settlement of Augusta Raurica was founded 10 or 20 kilometres upstream of present Basel, and a castle was built on the hill overlooking the river where the Basel Münster now stands.

During this month there is precipitation for an average of 10. 9 days.

During the days of the Cold War in the United Kingdom, labour union leaders and other leftists were sometimes derisively described as " Bolshies ".

During winter training, the pilots fly two practice sessions per day, six days a week, in order to fly the 120 training missions needed to perform the demonstration safely.

During the winter, storms blowing from the Sahara sometimes form dense dust clouds that obscure the sun ; however, sunny days are the norm year round.

During the religion's early days of rapid growth, the teachings were frequently attacked from the pulpit and press.

During competition season it often becomes seven days with practice twice a day sometimes.

During his Army days, Janssen became friends with fellow enlistees Martin Milner and Clint Eastwood while posted at Ft. Ord, California.

During the Siege of Paris in 1871, the North German Confederation, supported by its allies from southern Germany, formed the German Empire with the proclamation of the Prussian king Wilhelm I as German Emperor in the Hall of Mirrors at the Palace of Versailles, to the humiliation of the French, who ceased to resist only days later.

During these days in which the offices of sadaijin and udaijin were vacant, the major counselors ( the dainagon ) and the emperor assumed responsibilities and powers which would have been otherwise delegated.

During the first few days of the spill, heavy sheens of oil covered large areas of the surface of Prince William Sound.

During the summers, she would frequent the prime minister's house so she could lounge about on his veranda during the hot Delhi days.

During the school year, the pregnant woman and senior citizens need to manage to find a place because these buses are always full, especially on market days.

During Hindu marriage ceremonies the following slokas are uttered by the grooms but, these days, their import little understood or ever attempted to understand.

During the early days of pregnancy, the conceptus is mobile, moving about in the uterus until about day 16 when " fixation " occurs.

During the early days of computers and programming, the hackers at MIT would develop a program and share it with other computer users.

During his days in Atlanta, Aaron reached a number of milestones ; he was only the eighth player ever to hit 500 career home runs, with his 500th coming against Mike McCormick of the San Francisco Giants on July 14, 1968 — exactly one year after former teammate Eddie Mathews had hit his 500th.

During the four days of its exhibition, an estimated 60, 000 people visited the site.

During its early days, Id Software produced much more varied games ; these include the early 3D first person shooter experiments that led to Wolfenstein 3D and Doom — Hovertank 3D and Catacomb 3D.