During the First World War Korzybski served as an intelligence officer in the Russian Army.

During the First World War, because of his family connections with both sides and the division of popular opinion, Spain remained neutral.

During Baldwin III's reign, the County of Edessa, the first crusader state established during the First Crusade, was conquered by Zengi, the Turkic emir of Aleppo.

During the First and Second World Wars, Inchcolm was occupied by the army as part of the defences of the Firth of Forth.

During the First World War, on the Western front, the two sides had been locked in a trench war, where kill zones by overlapping fire of machine guns and barbed wire prevented either side from breaking through.

During and after the First World War, these concepts were further developed by generals, such as Oskar von Hutier and the Reichswehr.

During the First World War the German army used horses for logistics, 1. 4 million of them, in the 1939 – 45 war it used 2. 7 million horses.

During the First World War Prime Minister Robert Borden attempted to form a coalition with the opposition Liberals to broaden support for controversial conscription legislation.

During the First World War, he and his wife performed many services for the public of Leicestershire, including opening up their home first as a VAD Hospital under the 5th Northern General Hospital, and later as a hospital for Naval Personnel.

During the First World War, German troops retreated into this territory from Kamerun because Spain was neutral during the war.

During the First Partition of Poland in 1772, the city state was annexed by King Frederick the Great of the Kingdom of Prussia.

During this time Anthony Munday dedicated his Primaleon ; The First Book to Oxford.

During the late Old Kingdom and the First Intermediate Period ( c. 2181 – 2055 BC ), the Egyptians gradually came to believe that possession of a ba and the possibility of a paradisiacal afterlife extended to everyone.

During Hillary Clinton's campaign for election to the U. S. Senate, the couple's daughter Chelsea took over much of the First Lady's role.

During the First Indochina War ( 1946 – 54 ), the Foreign Legion saw its numbers swell due to the incorporation of Second World War veterans who couldn't adapt to civilian life.

During the First World War, Britain's Army and Navy had separate signals intelligence agencies, MI1b and NID25 ( initially known as Room 40 ) respectively.

During the spring and summer, First Nations and Métis trappers did the vast majority of the animal trapping and pelt preparation.

During the First Aliyah, between 1882 and 1903, approximately 35, 000 Jews moved to Palestine.

During the War of the First Coalition ( 1792 – 1797 ), the Directoire had replaced the National Convention.

" During that same year, the Greek cities in Sicily were induced to revolt against Roman political control, while the Macedonian king, Philip V, pledged his support to Hannibal – thus initiating the First Macedonian War against Rome.

During the First World War, Alexis Carrel and Henry Dakin developed the Carrel-Dakin method of treating wounds with an irrigation, Dakin's solution, a germicide which helped prevent gangrene.

During the Kumul Rebellion, the Kuomintang 36th Division ( National Revolutionary Army ) crushed a separatist Uyghur First East Turkestan Republic, delivering it a fatal blow at the Battle of Kashgar ( 1934 ).

During the First Indochina War, the Indochinese Communist Party formed the Pathet Lao resistance organization committed to Lao independence.

During the 1990s, Charles Taylor's presidency and the First and Second Liberian Civil Wars underscored Liberian relations with the Western world, the People's Republic of China, and its neighboring countries in Western Africa.

During the War of the First Coalition, Luxembourg was conquered and annexed by Revolutionary France, becoming part of the département of the Forêts in 1795.

During the First Opium War ( 1839 – 1842 ), British forces occupied the city.

During the Second Opium War and the Taiping Rebellion, piratical junks were again destroyed in large numbers by British naval forces but ultimately it wasn't until the 1860s and 1870s that fleets of pirate junks ceased to exist.

During the First Opium War, the British navy defeated Eight Banners forces at Ningbo and Dinghai.

During the First Opium War between Britain and China, the British captured the city in the Battle of Amoy on 26 August 1841.

During his governorship, Raffles introduced partial self-government, stopped the slave trade, became an early opponent of the Opium trade by placing strict limitations upon its importation ( much to the dismay of Calcutta ), led an expedition to rediscover and restore Borobudur and other ancient monuments, and replaced the Dutch forced agriculture system with a land tenure system of land management, probably influenced by the earlier writings of Dirk van Hogendorp ( 1761 – 1822 ).

During the Second Opium War, he was one of the chief architects of Qing foreign policy and he repudiated many of the treaties that were concluded in the late 1850s, in particular the territorial concessions in the Sino-Russian Treaty of Aigun.

During the Second Opium War, repeated requests by Europeans to meet with Xianfeng were also denied.

During his governorship, a dispute broke out with the Chinese and the irritation caused by his spirited or high-handed policy led to the Second Opium War ( 1856 – 1860 ).

During the Second Opium War, in 1860, the Old Summer Palace in Beijing was occupied by a contingent of British and French troops.

During the period of international opening and quasi-colonialism, the first group to settle in China were Jews who arrived in China under British protection following the First Opium War.

During the 19th century, China's growing opium trade with the British Raj triggered the Opium Wars.

During the Second Opium War, the residence was completely destroyed and Viceroy Ye Mingchen ( 葉名琛 ) was captured by the British.

During the life of Khedrup Gyatso, wars over Ladakh weakened the lamas ' power over the Tibetan Plateau and the Opium Wars and Taiping Rebellion simultaneously weakened Chinese influence on Tibet.

During the Second Opium War, an Anglo-French expedition landed in China and marched towards Peking in order to force the compliance of the Treaty of Tientsin.

During the 19th century the Opium Wars with the West resulted in China's loss of control over Hong Kong, which was ceded to the British.

During the waning years of the Qing Dynasty, China ’ s last feudal regime, the empire endured a series of foreign invasions and vicious domestic struggles, beginning with the first Opium War in 1840.

During the Second Opium War ( 1856 – 1860 ), invading troops stationed outside the city walls gave up, because Beijing was too extensively protected.