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 his naval days, Bogart's character and values developed independent of family influence, and he began to rebel somewhat against their values.

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 the period, the laboratory rendered centralized macropathological service to qualified requesters.

During nighttime hours, because of the intense skywave propagation then prevailing, no large number of stations can be permitted to operate on one of these channels, if the wide area service for which these frequencies are assigned is to be rendered satisfactorily by the dominant stations which must be relied upon to render it.

During his service, Morita met his future business partner Masaru Ibuka in the Navy's Wartime Research Committee.

During the extended peak of the strip, the workload grew to include advertising, merchandising, promotional work, public service comics and other specialty work — in addition to the regular six dailies and one Sunday strip per week.

During the 1999 Wimbledon Championships, the BBC presented a service which allowed viewers to select a video stream of different matches, and access additional information such as player profiles, scores and interactive quizzes.

During Selig's term of service, the use of steroids and other performance enhancing drugs became a public issue.

During this period, Colombia ’ s telecommunications industry lost US $ 2 billion despite a profit of US $ 1 billion in local service.

During the time of the CCC, volunteers planted nearly 3 billion trees to help reforest America, constructed more than 800 parks nationwide and upgraded most state parks, updated forest fire fighting methods, and built a network of service buildings and public roadways in remote areas.

During world war one and two service personnel were issued pressed fibre Identity disks, one green octagonal shaped disc, and a red round disc ( some army units issued a second red round disk to be attached to the service respirator.

During the 1992 U. S. presidential election campaign, the civil rights of gays and lesbians, particularly their open service in the military, attracted some press attention, and all candidates for the Democratic presidential nomination supported ending the ban on military service by gays and lesbians,

During World War II, the Federal Bureau of Investigation investigated rumors that Kaye dodged the draft by manufacturing a medical condition to gain 4-F status and exemption from military service.

During his service in both world wars, Armstrong gave the U. S. military free use of his patents.

During a service on 1 January 1901, a student named Agnes Ozman asked for prayer and the laying on of hands to specifically ask God to fill her with the Holy Spirit.

During GSM service ( voice call or SMS ), GPRS service is suspended, and then resumed automatically after the GSM service ( voice call or SMS ) has concluded.

During service there, he was accidentally wounded by one of his own sentries on 9 October 1919.

During the Great War, the Italian Royal Army increased in size from 15, 000 men in 1914 to 160, 000 men in 1918, with 5 million recruits in total entering service during the war.

During World War II he was rejected for military service because of a heart murmur.

During his service in the Peace Corps, he met future road manager Dylan Ferrero, with whom he still works today.

During this decade smokeless powder came into general use, and the calibre of various service rifles diminished.

The beginning of Polish parish in modern times is connected to him In XIX century Polish population of the town consisted among others of Polish soldiers in Prussian service stationed in the city, salt refining specialists from Ciechocinek, political prisoners in local Prussian and permanent Polish inhabitants In the second half of XIX century the Polish community further increased with arrival of Polish workers During the period 1875-1914 an active Polish community grew and through its funds a Catholic school and the Church of Saint Marcin where masses in Polish were held ( initially throughout the season, after about 1890 all the year ), were established.

During this period of service, he adopted a son.