During the same period Dürer trained himself in the difficult art of using the burin to make engravings.

During 1995, the government implemented firm stabilization policies under difficult circumstances.

During the tour Thomas was invited to many parties and functions and on several occasions became drunk, going out of his way to shock people and was a difficult guest.

During the late 1990s and early 2000s, a number of games were created using DHTML, but differences between browsers made this difficult: many techniques had to be implemented in code to enable the games to work on multiple platforms.

During the rest of the year it is usually quite difficult to find in stores, but sometimes it is sold at other times of the year under the name must.

During that time, the ' navigator ' position in the raceboat was extremely important ( unlike in today's small, track-like circuits ), as finding small checkpoints over a hundred mile open ocean run was a difficult endeavor.

During this time, Musharraf maintained his friendship and contact with Mirza through letters and telephones even in difficult times when Mirza, after joining the Navy Special Service Group, was stationed in East-Pakistan as a military advisor to East Pakistan Army.

During production, she developed a reputation for being difficult and unreasonable ; and Korda instructed her agent to warn her that her option would not be renewed if her behaviour did not improve.

During the mid-1830s, trade with China was becoming more difficult due to the Qing government's increasing restrictions on the narcotic trade in part to control the worsening outflow of silver.

During a difficult period of transition, he did much to improve the working relationship between the races.

During the latter decades of the 20th century, extremely difficult cliffs were explored including some in Death Canyon, and by the mid-1990s, 800 different climbing routes had been documented for the various peaks and canyon cliffs.

During the dozen or more years he spent in Germany he was entrusted with several honourable and difficult missions, which brought him into contact with the courts of Dresden, Vienna, Munich and Württemberg, as well as with Napoleon I of France.

During the most difficult moments of the coup, at the beginning of October, Yerin, in contrast with Minister of Defence Pavel Grachev, acted decisively and was awarded the highest Russian Military Order, Hero of the Russian Federation.

During his confinement, the communication between him and his followers was not completely severed, but was quite difficult, and he was not able to elucidate his teachings to the public.

During the 5000 km journey across Africa through some of its most difficult country consisting of almost impenetrable rainforest and swamps, Stairs and colleagues suffered frequently from malaria and dysentery.

" During the making of All About Eve, ( 1950 ) Joseph L. Mankiewicz told her of the perception in Hollywood that she was difficult, and she explained that when the audience saw her on screen, they did not consider that her appearance was the result of numerous people working behind the scenes.

During this final period, he composed several notable works, including the difficult Violin Concerto, Op.

During the time of the Great Frost, a particularly cold spring drought in 1740 made it difficult to raise enough cattle for food or work.

During the cold war, the Royal Norwegian Navy was optimized for sea denial in coastal waters, in order to make an invasion from the sea as difficult and costly as possible.

During thoses days, even though travel was difficult, families were happy and content with their way of living.

During this time the Township of Walker to the north took over a small portion of the new township as it was north of the Grand River and the ability to manage that land would be difficult.

During negotiations with Microsoft CEO Steve Ballmer, Yang threatened to make the takeover as difficult as possible unless Microsoft raised the price to US $ 37 per share.

During the attacks, the Chinese assault teams would disperse while masking themselves using the terrain, and this made it difficult for UN defenders to target large number of Chinese troops.

During the early days of the Internet, it was difficult for fansubbing groups to get the attention of their target audience.

During the series filming, Crawford's weight and penchant for heavy drinking contributed to several injuries suffered on the set, and it became particularly difficult for Crawford to do certain scenes, such as when he had to enter and exit a CHP police helicopter.

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.