* 5th-11th centuries — Several astronomers propose a Sun-centered universe, including Aryabhata, Albumasar and Al-Sijzi

Several astronomers searched for motions with this period, but none were found.

Several astronomers, among them Rublev ( 1965 ) and Conti ( 1976 ) originally proposed that the WR stars as a class are descended from massive O-stars in which the strong stellar winds characteristic of extremely luminous stars have ejected the unprocessed outer H-rich layers.

Several definitions of the term starburst galaxy exist and there is no strict definition on which all astronomers agree.

Several notable astronomers and astrophysicists have been awarded the Tyson Medal in the history of Part III maths, including Jayant Narlikar, Ray Lyttleton and Edmund Whittaker.

Several groups that have continued to call themselves Theodish.

Several stars came through Philadelphia, though few would stay, and the minor league system continued to develop its young prospects, who would soon rise to Phillies fame.

Several weeks later the post continued to generate controversy.

Several of Iolanthe's themes are continued from Patience, including the war between the sexes and the satire on legal and political themes.

Several air forces continued to use biplanes for primary training up till WWII and even beyond: the de Havilland Tiger Moth in the Royal Air Force, Stampe SV. 4 in French and Belgian Air Forces, and the Boeing Stearman in the USAF.

Several notable battles were fought though pirate junks continued operating off China for years more.

Several short-lived Comets reunions were attempted in the 1970s and 1980s, including one contingent ( organized by Baltimore-based piano player Joey Welz who played piano for the Comets during the summer of 1965 ) that appeared on The Tomorrow Show, and another run by an Elvis Presley impersonator named Joey Rand ( this group later lost a legal action over the right to use the Comets name ), but only one group was officially sent out to perform by Haley himself, and his management / production company, which were the official Comets who played with Haley throughout the 1960s and 1970s and continued to perform as the Comets between gigs and during Haley's retirement.

Several unsuccessful searches followed, and the plague continued unabated until a shepherd boy followed a trail of bees into a hole in the ground.

Several companies continued to exist under their own names but by 1992 most ( including MBB and TST ) were fully integrated.

Several weeks after its debut, Ottawa Citizen television columnist Bob Blackburn deemed the programme to be noticeably improved and predicted that if that trend continued " and if the program doesn't run dry on its slightly limited subject matter, Front Page Challenge might well become an institution on Canadian TV ".

Several Tank players ( including Glenn Presnell ) continued their football careers by joining the nearby Portsmouth Spartans who continued the annual tradition until their demise after the 1933 season.

Several campaigns of Coenwulf's against the Welsh are recorded, but only one conflict with Northumbria, in 801, though it is likely that Coenwulf continued to support the opponents of the Northumbrian king Eardwulf.

Several incursions by local tribes into Macedonia continued for many years, though there were tribes who willingly allied themselves to Rome, such as the Deneletae and the Bessi.

Several important applications of astrography, including astronomical spectroscopy and astrometry require greater dimensional stability than film could provide, and continued using plates until digital imaging improved to the point of supplanting photochemical photography for these purposes.

Several universities were established or expanded during his rule, and he continued to send a great number of students to foreign universities, especially in the United States.

Several years afterward, he retired from business pursuits in Lowell but continued in real-estate and entertainment projects in Atlantic City, New Jersey, and Florida.

Several affordable solutions were released during the late 1980s and early 90s ; many of these continued to use tape, either in reels, or in more manageable videocassettes.

Several of the members subsequently continued language schools in Cuernavaca, of which some still exist.

Several imperial privileges, however, continued to be enjoyed by the town until 1849.

Several Reform politicians continued to attempt to reach out to Mackenzie, but he rebuffed all of them, to the point that by 1857, only David Christie still attempted to include Mackenzie in Reform Party plans.

Several FDI reports have proven to be false, yet Minkow continued to profit from his short sales position due to sharp decreases in the reported company's stock price immediately after releasing a new report.

Several guards became increasingly cruel as the experiment continued ; experimenters reported that approximately one-third of the guards exhibited genuine sadistic tendencies.

Several Byzantine titles such as logothetes and protovestarius continued in use, although these titles were adapted to fit the conceptions of Western feudalism.

Several nationalist leaders banded together in 1916 under the leadership of Annie Besant to voice a demand for self-government, and to obtain the status of a Dominion within the British Empire as enjoyed by Australia, Canada, South Africa, New Zealand and Newfoundland at the time.

Several rings were built in Europe during the five years that it took to obtain funding for the project, but the extensive project revisions resulted in a superior design that was quickly constructed and paved the way for Nobel Prizes in 1976 for Burton Richter and in 1995 for Martin Perl.

Several nationalist leaders banded together in 1916 under the leadership of Annie Besant to voice a demand for self-government, and to obtain the status of a Dominion within the British Empire as enjoyed by Australia, Canada, South Africa, New Zealand and Newfoundland at the time.

Several American Jewish organizations helped them obtain visas and aided their resettlement in the United States and other countries.

Several weeks later, Chavez is deployed to Austria, where a group of left-wing German terrorists have taken over the schloss of a wealthy Austrian businessman, Erwin Ostermann, in order to obtain imaginary " special access codes " to the international trading markets.

Several special filming techniques were devised to obtain some of the footage of rare and elusive animals.

Several universities were eager to obtain his services, and he had accepted a post offered him by the elector palatine at Heidelberg, when he died suddenly.

Several days before his death, in a state of stupor he went on a high speed drive around Moscow in an attempt to obtain drugs and alcohol – when many high-ranking people saw him.

Several unaddressed envelopes are to be found with similar combinations of Portuguese India and Union of India stamps in this time frame, the challenge being to obtain a postmark from each of the different days.

Several conditions make it hard for researchers to obtain accurate statistics on elder abuse.

Several Canadian prime ministers, starting with William Lyon Mackenzie King in 1927, had made attempts to domesticize the amending formula, but could not obtain agreement with the provincial governments as to how such a formula would work.

* Lack of content: Several games currently on the market have many times the number of quests to complete, monsters to fight, items to obtain, and areas to explore than what Istaria can offer.

Several times, powerful lords attempted to obtain the mastery of the city ( Alidosi, 1292 ; Maghinardo Pagano, 1295 ).

Several reactions are required to obtain the gaseous reactants required for Fischer – Tropsch catalysis.

Several plots to obtain control of its arms were initiated in early 1861 by paramilitary organizations from both sides.

Several years earlier, meeting Grigory Shelikhov, of the Shelikhov-Golikov Fur Company, Rezanov became interested in the merchant's project to obtain a monopoly of the fur trade in those distant dependencies.

Several settlers tried to obtain the best land near the falls, of whom Fort Snelling's sutler, Franklin Steele, took the best part of the east bank including Nicollet Island.

Several NSW caving groups run regular trips to Wombeyan Caves, these are official caving groups that obtain permits for various cave related expeditions.

Several methods have been devised to obtain a good estimate of the SMD.

Several of the film's events – such as attacking the Captain while he is watching a film, and one the sailors trying to obtain compassionate leave to deal with a dying child – are taken from Thomas Heggen's original novel Mister Roberts.