During this precarious period of development the mother should continue to influence the growth of the child's conscience.

During the period from 1 July 1960 through 31 January 1961, additional research affiliations were effected with the U. S. Army Medical Research and Development Command to conduct research in procedures for quantitative electron microscopy, and for the study of biophysical and biological studies of the structure and function of ocular tissue.

During this period, a total of 762 exhibits were presented at 442 medical and scientific meetings.

During the period of this report, 37,470 new cases were entered into the various registries.

During this period, 7,827 teaching sets were distributed on loan.

During the period of this report, 63 panel exhibits depicting the latest developments in medical research were displayed.

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

During the period from 1 July 1960 through 31 January 1961, the Medical Museum was required to move to Temporary Building `` S '' on the Mall from Chase Hall.

During the period of about 4 hours around sunset, skywave transmission conditions are building up until full nighttime conditions prevail ; ;

During the Civil War period Mr. Brown also invented the Brown & Sharpe formed tooth gear cutter, a basic invention which ultimately revolutionized the world's gear manufacturing industry by changing its basic economics.

During this period 7,484,268 members were received, yet the net membership now is only 9,910,741.

During the period of the Iberian Union ( 1580 – 1640 ), Portugal lost influence and power and made new enemies.

During the Romantic period, art came to be seen as " a special faculty of the human mind to be classified with religion and science ".< ref >

During the same period the Georgian states of Colchis and Tabal arose around the Black Sea and central Anatolia respectively.

During this same period, slave-holding border states had more free African-Americans and European immigrants than the lower South, which increased Southern fears that slavery was threatened with rapid extinction in this area.

During this period he published 18 plays and 3 novels, including the murder mystery The Red House Mystery ( 1922 ).

During this period winter sports were slowly introduced: in 1882 the first figure skating championship was held in St. Moritz, and downhill skiing became a trendy sport with English visitors early in the 20th century, as the first ski-lift was installed in 1908 above Grindelwald.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the first 11 months of 2006, net imports grew by 21 percent to $ 1. 95 billion, while exports stood at $ 895 million, up 0. 3 percent from the same period in 2005.

During the first 11 months of 2006, the European Union remained Armenia's largest trading partner, accounting for 34. 4 percent of its $ 2. 85 billion commercial exchange during the 11-month period.

During January – February 2007, Armenia ’ s trade with Russia and other former Soviet republics was $ 205. 6 million ( double the amount from the same period the previous year ), making them the country ’ s number one trading partner.

During this period, spectator attendances dropped and media condemnation increased, but Simpson and Lawry flatly disregarded the public dissatisfaction.

During the Tokugawa period ( 1600 – 1868 ) the Ainu became increasingly involved in trade with Japanese who controlled the southern portion of the island that is now called Hokkaido.

During this period Agamemnon and his brother, Menelaus, took refuge with Tyndareus, King of Sparta.

During the Akkadian period, the Akkadian language became the lingua franca of the Middle East, and was officially used for administration, although the Sumerian language remained as a spoken and literary language.

During the siege of Nagashima, Nobunaga suffered tremendous losses, including the death of a couple of his brothers, to the Ikkō-ikki resistance, a coalition of peasant farmers, monks, Shinto priests and local nobles that opposed samurai rule.

During the Sengoku period, it had become common for peasants to become warriors, or for samurai to farm due to the constant uncertainty caused by the lack of centralized government and always tentative peace.

During the six-week scriptwriting process, Kurosawa and his screenwriters realized that " six sober samurai were a bore — they needed a character that was more off-the-wall.

During the Meiji period an edict was passed in 1871 abolishing the requirement of the wearing of daishō by samurai, and in 1876 the wearing of swords in public by most of Japan's population was banned ; this ended the use of the daishō as the symbol of the samurai, and the samurai class was abolished soon after the sword ban.

During the Heian period, the province was divided into numerous shōen controlled by local samurai clans.

During the Edo Period, as the naginata became less useful for men on the battlefield, it became a symbol of the social status of women of the samurai class.

During the Tokugawa period ( 1603 – 1868 ) Japan was turned inward as a hierarchical caste society in which the samurai were at the top.

During the changes brought by Japan opening up to the outside world at the beginning of the Meiji era ( 1868 – 1912 ), the samurai lost their position.

During previous ages, samurai were able to move between masters and even between occupations.

During this period, samurai were still, largely, archers first and foremost, before swordsmen.

During the 14th century Shogunate, a samurai warrior might perfume his helmet and armor with incense to achieve an aura of invincibility ( as well as to make a noble gesture to whomever might take his head in battle ).

During the rise of the samurai class during the Heian and Kamakura Periods ( 794 – 1333 ), the Ouchi family of Suō Province and the Koto family of Nagato Province gained influence as powerful warrior clans.

During the peaceful Edo era, yari were still produced, sometimes even by good sword smiths, they existed as a ceremonial weapon and a samurai police weapon for most of this era.

During the Heian period ( 794 to 1185 ) the Japanese cuirass evolved into the more familiar style worn by the samurai known as the dō or dou.

During the Edo period the use of real swords for training purposes was discouraged due to injuries, wooden practice swords in the form of bokken / bokuto and shinai were used instead, and to further reduce injuries practice armour based on traditional samurai armor was developed, this practice armour was the basis for the modern bōgu.

During a council meeting in June 1869, Ōmura argued that if “ the government was determined to become militarily independent and powerful, it was necessary to abolish the fiefs and the feudal armies, to do away with the privileges of the samurai class, and to introduce universal military conscription .” Ōmura's ideal military consisted of an army patterned after that of the Napoleonic French armies and a navy that was patterned after the British Royal Navy.

During the Tokugawa period ( 1603 – 1868 ), the naginata was transformed into a symbol of status for female samurai, as well as being the primary means for a woman to defend her home while her husband was away at war.

During the Meiji period, many samurai, including the Date clan, lost their territories due to the political changes of the Meiji Restoration.

During the rise of the samurai class in the Heian and Kamakura Periods ( 794 – 1333 ), the Ouchi family of Suō Province and the Koto family of Nagato Province gained influence as powerful warrior clans.

During World War II, captured American airmen were beheaded with samurai swords in Hachiōji.

During the Heian period, the province was divided into numerous shōen controlled by local samurai clans.

During the Nanboku-chō War, samurai stewards frequently took the lands of nobles and converted them into private holdings ( chigyo ) illegally.