Although testing medical interventions for efficacy has existed since the time of Avicenna's The Canon of Medicine in the 11th century, it was only in the 20th century that this effort evolved to impact almost all fields of health care and policy.

Although they are thought to have been used in Europe much earlier, gambesons underwent a revolution from their first proven use in the late 11th and early 12th centuries as an item of armour that simply facilitated the wearing of mail to an item of independent armour popular amongst infantry.

Although the Neijing has long been attributed to the mythical Yellow Emperor ( twenty-7th century BC ), Chinese scholars started doubting this attribution as early as the 11th century and now usually date the Neijing to the late Warring States period ( 5th century-221 BC ).

Although part of the Roman world, we know very little about the island until the 11th century.

Although originally hailed as authentic ( notably by Robert Eisler ), it is now almost universally acknowledged by scholars to have been the product of an 11th century creation as part of a larger ideological struggle against the Khazars.

Although its uses had transferred to parchment, papyrus therefore just overlapped with the use of paper in Europe, which began in the 11th century.

Although relatively weak up until the early 11th century under the Sancho III ( 1004 – 1035 ), Navarre took up a more active Christian role after the accession to the throne of the Jimenez lineage ( 905 ).

Although widely reported as the death knell of the Star Trek franchise, the cancellation of Enterprise was followed within months by the announcement that Paramount was in pre-production on an 11th Star Trek feature film.

Although the exact truth is not known, Priene was said to have been first settled by Ionians under Aegyptus, a son of Belus and grandson of King Codrus, in the 11th century BCE.

Although he didn't play in organized baseball until he reached the 11th grade, he learned much about the sport from listening to Cardinals radio broadcaster Harry Caray describe the way major league hitters stood at the plate.

Although allusions to Sabbats were made by the Catholic Canon law since about 905, the first book that mentions the Sabbat is, theoretically, Canon Episcopi, included in Burchard of Worms's collection in the 11th century.

Although he was since elected as member of the Politburo in the 8th to 11th National Congress of the CPC, Vice-Chairman of the 2nd to 5th Standing Committee of the National People ’ s Congress, and all the while holding the title of Vice-Chairman of the Military Committee, he did not participate very much in politics, citing health problems as a reason for his absence.

Although philosophy has long been used in evaluation of religious claims ( e. g. Augustine and Pelagius's debate concerning original sin ), the rise of scholasticism in the 11th century, which represented " the search for order in intellectual life " ( Russell, 170 ), more fully integrated the Western philosophical tradition ( with the introduction of translations of Aristotle ) in religious study.

Although fixed-wing aircraft operations ceased, the installations continued their important service to the country and the world, serving in many capacities, including service with the Military Airlift Command ( MAC ); the headquarters for the Air Force District of Washington ; the Air Force 11th Wing ; Commander, Naval Installations Command, Naval Media Center ( now, Defense Media Activity-Navy ) and many other military commands and federal agencies

Although roled as pioneers, the 11th King's occupied frontline trenches near Urvillers when the attack began.

Although sources suggest that the foggaras may have been in use as early as 200 AD, they were clearly in use by the 11th century after the Arabs took possession of the oases in the 10th century and the residents embraced Islam.

Although not as well known as the Pejsa model, an additional alternative ballistic model was presented in 1989 by Colonel Duff Manges ( U S Army Retired ) at the American Defense Preparedness ( ADPA ) 11th International Ballistic Symposium held at the Brussels Congress Center, Brussels, Belgium, May 9-11, 1989.

Although the history of carpet weaving in Bergama dates back to the 11th century, most surviving carpets do not age more than 200 years-mainly due to their wool content.

Although the south chancel wall, with its corbel table, complete with three round-headed windows date from the 11th century and the west tower dates from the 1170s, most of the church is 13th century.

Although the barrage was mostly accurate, a part fell short at the junction of the 4th and 11th brigades, virtually wiping out one American squad and one platoon of the 43rd battalion.

* Although Chrismukkah appears to be Seth's favorite holiday throughout the series, his favorite holiday is actually Thanksgiving, which he states in the 11th episode of the first season, The Homecoming.

Although the 961 managed to run as high as 11th overall in the race, Kees Nierop crashed the car after suffering a gearbox problem.

Although no copies of early genealogies are extant today, fragments have been preserved by famed Chinese historian Ouyang Xiu in the 11th century work Xin Tang Shu.

Although the centre of national political power moved to Kraków in the 11th century, and later to Warsaw, Poznań remained an important regional center, being the chief city of the Greater Poland ( Wielkopolska ) region.

Although because of the important achievements of nineteenth century scholars in the field of textual criticism the advance is not so striking as it was in the case of archaeology and place-names, the editorial principles laid down by Stevenson in his great edition of Asser and in his Crawford Charters were a distinct improvement upon those of his predecessors and remain unimproved upon today.

Although it is not possible to sunder old and new in this era, I shall consider in the present chapter primarily the first decades of the eighth century and shall interpret them as an apogee of the first stage of Greek civilization.

Although controversial at its time, the 13 principles laid out by the 12th century Spanish Jewish philosopher Maimonides are now considered mostly normative.

Although the ornithopter continues to be of interest to hobbyists, it was replaced by the glider in the 19th century.

Although this is a relatively small value, it was well within the observational capability of the instruments available in the early eighteenth century.

Although this distinction was blurred by the 19th century arrival of the railway.

Although observations of some aerodynamic effects such as wind resistance ( e. g. drag ) were recorded by Aristotle, Leonardo da Vinci and Galileo Galilei, very little effort was made to develop a rigorous quantitative theory of air flow prior to the 17th century.

Although Anabaptists began with the Radical Reformers in the 16th century, certain people and groups may still legitimately be considered their forerunners due to a similar approach to the interpretation and application of the Bible.

Although bluetongue disease was already recognized in South Africa in the early 19th century, a comprehensive description of the disease was not published until the first decade of the 20th century.

Although possibly Celtic-speaking in 179 BC, the Bastarnae probably were Germanic in language and culture during the 1st century AD, but appear to have become assimilated by their neighbouring Sarmatians by the 3rd century.

Although probably on friendly terms with the Romans in the early 1st century, there is little evidence of the Peucini until ca.

Although there were several competing theories as to the etiology of the Black Death, recent analysis of DNA from victims in northern and southern Europe indicates that the pathogen responsible was the Yersinia pestis bacterium, which causes the Bubonic plague, although these were different, previously unknown ancestral variants of those identified in the 20th century.

Although the form declined in popularity towards the end of the 18th century its influence can be seen in light operas like that of Gilbert and Sullivan's early works like The Sorcerer as well as in the modern musical.

Although attributed to Burns, the Selkirk Grace was already known in the 17th century, as the " Galloway Grace " or the " Covenanters ' Grace ".

Although the Portuguese arrived on Cameroon's doorstep in the 16th century, malaria prevented significant European settlement and conquest of the interior until the late 1870s, when large supplies of the malaria suppressant, quinine, became available.

Although founded as a preparatory and vocational school by Amos G. Throop in 1891, the college attracted influential scientists such as George Ellery Hale, Arthur Amos Noyes, and Robert Andrews Millikan in the early 20th century.

Although current trends show substantial competition from alternative interpretations, throughout much of the twentieth century the Copenhagen interpretation had strong acceptance among physicists.

Although European explorers and traders visited the area since the 18th century, permanent white communities were not established until some time later.

Although classical liberalism built on ideas that had already developed by the end of the 18th century, it advocated a specific kind of society, government and public policy as a response to the Industrial Revolution and urbanization.

Although classical liberals aspired to a minimum of state activity, they accepted the principle of government intervention in the economy from the early 19th century with passage of the Factory Acts.

Although there has been an old tradition and like for making census in Spain, the oldest ones dating back to the 12th century ( by Alfonso VII of the Kingdom of Castile ), the first modern census was carried out in 1768 by Conde de Aranda, under the reign of Carlos III.

Although tradition holds that in the Zhou, the year began on the new moon which preceded the winter solstice, the Spring and Autumn Annals seem to indicate that ( in Lu at least ) the Yin calendar ( the calendar used in Shang dynasty, with years beginning on the first new moon after the winter solstice ) was in use until the middle of the 7th century, and that the beginning of the year was shifted back one month around 650 BC.

Although crochet underwent a subsequent decline in popularity, the early 21st century has seen a revival of interest in handcrafts and DIY, as well as great strides in improvement of the quality and varieties of yarn.