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 Alexius II's reign, the Byzantine Empire was invaded by King Bela III losing Syrmia and Bosnia to the Kingdom of Hungary in AD 1181, later even Dalmatia was lost to the Venetians.

During his reign, Jerusalem became more closely allied with the Byzantine Empire, and the two states launched an unsuccessful invasion of Egypt.

During the history of the Byzantine Empire, the Greek peninsula was occasionally invaded by the foreign peoples like Goths, Avars, Slavs, Normans, Franks and other Romance-speaking peoples who had betrayed the Crusades.

During the Middle Ages, the Eastern Roman Empire lived on in Southeastern Europe, though modern historians refer to this state as the Byzantine Empire as the state was Greek, and not Latin, in language and culture.

During the reign of Wacho, they were Roman Catholics allied with the Byzantine Empire, but Alboin converted to Arianism as an ally of the Ostrogoths and invaded Italy.

During his reign as Sultan, Osman I extended the frontiers of Turkish settlement toward the edge of the Byzantine Empire.

During Orhan's reign as the Ottoman emir, the Byzantine Empire was in its last stages of its decline.

During these years the Byzantine Empire was so weak that commercial supremacy in the surrounding seas around it became a bone of contention for the Italian maritime commercial city states.

During his reign, Otto II attempted to annex the whole of Italy into the Empire, bringing him into conflict with the Byzantine Empire and with the Saracens of the Fatimid Caliphate.

During the regency rule of his widow, the Byzantine princess Theophanu, the empire abandoned her husband's imperialistic policy and devoted herself entirely to furthering an alliance between Church and Empire.

During his pontificate, the Byzantine emperor John V Palaeologus offered to submit the Greek church to the Roman See on condition of assistance against John VI Cantacuzenus.

During the Byzantine period, when the great earthquake of AD 551 destroyed most of the cities of Phoenicia, Beirut's School of Law took refuge in Sidon.

During the first war he was captured by Hephthalite army and later was released after Byzantine emperor paid a ransom for him.

During this period, the seat of the local Byzantine governor ( the " duke / dux ", later " doge ") was situated in Malamocco.

During the Middle Ages, the Byzantine gold Solidus, commonly known as the Bezant, circulated throughout Europe and the Mediterranean.

During the late Roman Empire, several Roman provinces covered the territory that comprises present-day Bulgaria: Scythia ( Scythia Minor ), Moesia ( Upper and Lower ), Thrace, Macedonia ( First and Second ), Dacia ( Coastal and Inner, both south of Danube ), Dardania, Rhodope ( Roman province ) and Haemismontus, and had a mixed population of Byzantine Greeks, Thracians and Dacians, most of whom spoke either Greek or variants of Vulgar Latin.

During this time the Byzantine state experienced a century of stability and progress.

During the 9th and 10th centuries, Scandinavian Vikings established trade posts on the way from Scandinavia to the Byzantine Empire.

During his stay, Manuel was forced to participate in the Ottoman campaign that reduced Philadelpheia, the last Byzantine enclave in Anatolia.

During his reign, he gave shelter to exiled monks from the Byzantine Empire who were persecuted for their opposition to iconoclasm, and invited mosaic artists to decorate churches in Rome.

During Paschal's papacy some efforts were made by the Byzantine Emperor Alexios I to bridge the schism between the Orthodox and the Catholic Church, but these failed, as he pressed the demand that the Patriarch of Constantinople recognise the Pope's primacy over " all the churches of God throughout the world " in late 1112.

During the break-up of the Later Byzantine Empire it was occupied by Genoese privateers ( 1197 – 1207 ) who in turn were expelled by the Venetians.

During the next few years, the Byzantine offensive slowed and no significant gains were made, though in 1009 an attempt by the Bulgarians to counterattack was defeated at the Battle of Kreta, which was fought to the east of Thessalonica.

During this period the Muslim world was a cauldron of cultures which collected, synthesized and significantly advanced the knowledge gained from the ancient Roman, Chinese, Indian, Persian, Egyptian, North African, Greek and Byzantine civilizations.

During the altercations between Emperor Basil I and his heir Leo VI, Photios took the side of the Byzantine emperor.