Since the late 1930s alloy steels have been used for frame and fork tubes in higher quality machines.

Since the early 1930s, the company has promoted spin-off reference works.

Since the 1930s, prices and wages had been controlled, but money had been plentiful.

Since the 1930s, the Estrada Doctrine has served as a crucial complement to these principles.

Since the 1930s, all nations have closely monitored the inflow and outflow of capital, and most economists agree that a favorable balance of trade is desirable.

Since the 1930s, Paraguayans have regarded Solano López as the nation's foremost hero.

Since the late 1930s, SF fans have organized conventions, non-profit gatherings where the fans ( some of whom are also professionals in the field ) meet to discuss SF and generally enjoy themselves.

Since the production of high-quality semiconductor materials was still decades away, Lilienfeld's solid-state amplifier ideas would not have found practical use in the 1920s and 1930s, even if such a device were built.

Since the early 1930s, the Polish government introduced a set of policies designed to Polonize all minorities ( Belarusians, Ukrainians, Jews, etc .).

Since the 1930s, many rural workers have moved to the big cities.

Since the late 1930s the monoplane has been the most common form of plane.

Since the 1930s, however, coups d ' état have disrupted this democracy.

Since achieving stability in the early 1930s, the NFL had never fielded more than 10 teams.

Since the late 1930s it has been the most common form for a fixed wing aircraft.

Since the 1930s industrial construction of the city has begun.

Since the 1930s, the city of John Day has served as the main economic center of the county, and boasts the largest population.

Since its crystallization in the 1930s, computation has been primarily approached from two traditions: engineering, which seeks to build practical systems using computations ; and mathematics, which seeks to prove theorems about computation ( albeit already in the 1970s computing as a discipline was described as being at the intersection of mathematical, engineering, and empirical / scientific traditions ).

Since the 1930s, the population of the community has gradually declined.

Since then, the Old Regent has been painstakingly rebuilt and restored once again, including recreating historic panels in the auditorium and the original 1930s carpeting.

Since it was also miles away from the Plandome Road School, the Manhasset school district built a conveniently located Munsey Park Elementary School in the 1930s.

Since the 1930s, Calabash has been known for its distinctive style of fried seafood, which has come to be known as " Calabash Style.

Since then, the City of Etowah has ridden the waves of economic downturns and successes, such as the closing of the L & N shops in the 1930s and the recruitment of new industries, to evolve into the city that it is today.

Since the 1930s, the Baak Doi label heaquartered in Shanghai had been published under the EMI banner and since then, EMI had also been the dominant label in the cantopop market in Hong Kong until the genre's decline in the mid 1980s.

Since the 1930s, construction kits compatible with Meccano were manufactured in the Soviet Union.

Since December 2007, the main regular presenters on the channel have been Simon McCoy, Carrie Gracie, Matthew Amroliwala, Jane Hill, Jon Sopel, Emily Maitlis, Louise Minchin, Huw Edwards, Ben Brown, Joanna Gosling and Chris Eakin.

* Since 2001, Triangle Vintage Dance has offered classes focusing on dances from the Victorian and Ragtime Eras for the Raleigh-Durham-Chapel Hill area.

Since privatisation extensions have been made to the tram system, with the $ 28 million extension of the 109 to Box Hill opening on 2 May 2003, a $ 7. 5 million extension along Docklands Drive in Docklands opened on 4 January 2005, and a $ 42. 6 million extension of the 75 to Vermont South opening on 23 July 2005.

Since becoming president of the BRDC in 2006, Hill says he has abandoned the guitar, being " too busy doing school runs and looking after pets.

Since ancient times, pigs were let loose into the woods that once stood upon Cuckoo Hill, to feed upon the acorns and roots therein.

Since the creation of Clarke ’ s Hill Lake, recreation has contributed to Lincoln County's growth.

Since the late 19th century, Grafton Hill and Vernon Hill have been points of entry for immigrants from all over the world: Irish, Italians, Lithuanians, Poles, Syrians, Lebanese, Indians, Puerto Ricans, French Canadians, and more recently, Albanians and Brazilians.

Since the mid 1980s, there have been teen comedies and teen dramas such as in the UK ; Byker Grove ( 1989-2006 ) and Grange Hill ( 1978-2008 ) and that are geared toward older children ( typically between the ages of 12 and 15 ).

Since 1870, the City of Florala, through Florala ’ s Fidelity Masonic Lodge # 685, ( beginning with Chapel Hill and Lake City Lodge # 377 ), and Chapter # 441 of the Order of the Eastern Star, has served as the home of the World ’ s Oldest Consecutive Annual Masonic Day Celebration.

Since the school is independent, students graduating from Science Hill can choose either the County or Somerset City High Schools.

Since 1853, Stockbridge has benefited from the presence of the Laurel Hill Association, a village beautification society.

Since 2008, the Mayor of Mine Hill Township is Richard Leary, whose term of office ends December 31, 2011.

Since then several works about Hill have appeared in Sweden, and Hill exhibitions succeed one another both in Sweden and abroad.

Since Gerry Anderson had expressed frustration with this caricatured design during the production of earlier Supermarionation series, and wished that the puppets would more accurately reflect human biology, before production commenced on Captain Scarlet the producer, Reg Hill, and his associate, John Read, designed a new type of puppet in which the solenoid was instead placed inside the chest, to permit a head of realistic proportion.

Since 1995, the design of ThinkPad has been led and managed by industrial designer David Hill.

Since 1936, the Town of New Windsor and the membership of the National Temple Hill Association have striven to ensure the preservation of this-the final winter encampment.

Since 1929, part of the Vatican Hill is the site of the State of the Vatican City.

Since the mid-1990s many of the original stable of artists have split up or moved to other labels, including Xpressway Records ( Port Chalmers, New Zealand ), Arch Hill Recordings ( Auckland ), Powertool Records ( Auckland ), South Indies, Paris or Matador Records ( United States ).

Since May 1843 it has been home to the Blackgang Chine amusement park, run by the Dabell family who also run the site's sister park Robin Hill.

Since he was occupied by post-production on the second Thunderbirds feature film, Thunderbird 6, and the development of his live-action film, Doppelgänger, Gerry Anderson was unable to take on a producer role as he had done for Captain Scarlet, instead passing the responsibility down to Reg Hill and David Lane.

Since 2009, CPAC has also had the authority to carry entertainment programming on July 1 in order to cover Canada Day celebrations on Parliament Hill or elsewhere, although it is not believed that this permission has been utilized to date.

Since 1960, Box Hill Athletic Club has headed the membership tally for all Victorian athletic clubs and has been State League premiers 25 times in men's competition and 13 times in women's competition, including stretches of 17 successive men's premierships and 8 successive women's premierships.