Prior to the 1950s, Alberta was a primarily agricultural economy, based on the export of wheat, beef, and a few other commodities.

Prior to the 1950s, the various stages of the recording and marketing process had been carried out by different professionals within the industry – A & R managers found potential new artists and signed them to their labels ; professional songwriters created new material ; publishing agents sold these songs to the A & R people ; staff engineers carried out the task of making the recordings in company-owned studios.

Prior to the 1950s, Clostridium acetobutylicum was used in industrial fermentation processes producing butanol.

Prior to 1985, almost all finals were played in the 2-2-1-1-1 format ( although the 1971 finals between Milwaukee and Baltimore were on an alternate-home basis, some 1950s finals used the 2-3-2 format, and the 1975 Golden State-Washington and 1978 and 1979 Seattle-Washington finals were on a 1-2-2-1-1 basis ).

Prior to the coming of the Interstate Highway System in the late 1950s, the only improvements to US 75 in Texas beyond building a two-lane paved roadway were in the Houston and Dallas areas.

Prior to the early 1950s, Shelter Key ( on which most of Key Colony Beach is located ) was a low-lying island.

Prior to the opening of Melching Field, the Hatters played at old Conrad Park on the same site, which also hosted spring training games in the 1940s and 1950s and the DeLand Red Hats, a Florida State League minor league franchise.

Prior to the onset of Rock ' n ' Roll in the 1950s, songs were published and several records of a song might be brought out by singers of the day, each giving it their individual treatment.

Prior to research done by scientists in the 1950s and 1960s, it was widely believed that only men were able to produce falsetto.

Prior to 2002, the flag was often used unofficially by Bermudian ships as an ensign, as reflected in Admiralty correspondence dating back to the 1950s.

Prior to the 1950s, each of the inhabited islands had significant communities of ethnic minorities of Turkey, which is only the case to a much smaller extent.

Prior to the 1950s emigration from Taiwan was negligible.

Prior to the introduction of Direct Distance Dialing ( DDD ) in the 1950s, which required dialing " 1 " to initiate a DDD call, the number for " Information " was 1-1-3 (" Repair " was 1-1-4 ).

Temporal logic is sometimes also used to refer to tense logic, a particular modal logic-based system of temporal logic introduced by Arthur Prior in the late 1950s, and important results obtained were by Hans Kamp.

Prior to the 1950s and the decolonization of West Africa, the djembe was known only in its original area.

Prior to the 1950s tube and rail maps show the station name without the apostrophe and on the station buildings the name has variously appeared with and without the apostrophe.

Prior to the 1950s, there was little distinction between toy trains and model railroads — model railroads were toys by definition.

Prior to construction of the Shore Parkway in the 1950s, Coney Island Creek was a strait connecting Gravesend Bay and Sheepshead Bay, making Coney Island an actual island.

Prior to development in the 1950s, Blackburn was primarily covered by orchards.

Prior to the introduction of Direct Distance Dialing ( DDD ) in the 1950s, which required dialing " 1 " to initiate a DDD call, the number for " Repair " was 1-1-4 (" Information " was 1-1-3 ).

Prior to the beginning of the 1950s, it should take to identify the many war dead in the area and to provide them with a dignified grave.

Prior to the early 1950s, a large number of present-day residents of Ebeye lived on small islands throughout Kwajalein Atoll, which is in fact the largest atoll in the world, boasting close to 99 islands surrounding a massive lagoon.

Prior to the 1950s it was often kept in captivity by people in parts of India.

Prior to the 1950s, there were separate policies for the various perils that could affect a home.

Prior to missionization in the 1940s and 1950s Shuar culture functioned to organize and promote a warrior society.

Prior to the introduction of AutoCAD, most other CAD programs ran on mainframe computers or minicomputers, with each CAD operator ( user ) working at a graphical terminal or workstation.

There are a number of interesting monuments, most notably that of Prior Vivian which was formerly in the Priory Church ( Thomas Vivian's effigy lying on a chest: black Catacleuse stone and grey marble ).

Prior to the 17th century most money was commodity money, typically gold or silver.

Prior to 1947 the Indians played most of their games at League Park, and occasionally played weekend games at Cleveland Municipal Stadium.

Prior to this, most music heard on radio was live ; most radio stations had an orchestra or band on the payroll.

Prior to the 2nd millennium BC, the Greek peninsula was inhabited by various pre-Hellenic peoples, the most notable of which were the Pelasgians.

Prior to the introduction of modern reinforced-soil gravity walls, cantilevered walls were the most common type of taller retaining wall.

Prior to Ebbinghaus, most contributions to the study of memory were undertaken by philosophers and centered on observational description and speculation.

Prior to the 19th century, the area which became Mali was criscrossed by trade and communication links, the most important being the Niger River, and important southern terminals of the Trans-Saharan trade routes.

Prior to mercantilism, the most important economic work done in Europe was by the medieval scholastic theorists.

Prior to the development of the campus, most of the site was cultivated with peach orchards, market gardens and poultry farms.

Prior to contact with Europeans, most tribes used similar weaponry.

Prior to the 19th century, however, they had significant influence, using to their advantage the fact that most citizens were disenfranchised and seats in the Commons were allocated disproportionately.

The Primus Pilus was also a Pilus Prior, and the most senior of all the centurions within the legion.

Prior to the 19th century, suburb often referred to the outlying areas of cities where work was most inaccessible — implicitly, where the poorest people had to live.

Prior to the 2001 season, star free agent shortstop Alex Rodriguez, was signed by the Rangers in the most lucrative deal in baseball history: a 10-year, $ 252 million contract.

Prior to the development of the Boehm system, flutes were most commonly made of wood, with an inverse conical bore, eight keys, and tone holes ( the openings where the fingers are placed to produce specific notes ) that were small in size, and thus easily covered by the fingertips.

Prior to turbo codes, such constructions were the most efficient, coming closest to the Shannon limit.

Prior to this conclusion he was notable as a psychoanalyst for working with the most difficult of patients and for developing a theory of more active intervention than is usual for psychoanalytic practice.

Prior to the development of metal movable type, most printing was done using blocks carved from wood.

Prior to United States Supreme Court decisions Reynolds v. Sims and Baker v. Carr in the 1960s, the basis of representation in most state legislatures was modeled on that of the U. S. Congress: the members of the smaller chamber represented geography and members of the larger chamber represented population.

Prior to the integration of Newfoundland's public ( government-funded ) school system in the late 1990s, those public schools administered by the Catholic Church mandated strict, uniform-like dress codes ( shirts and ties for boys, dresses or skirts for girls ), though many girls were outraged at this due to the freezing weather, at the elementary and junior high school levels, lifting most restrictions for high school students.

Prior to World War I, most of the cordite used by the British Government was produced in its own factories.

Prior to trial, most proceedings in non-criminal courts are conducted via papers filed in the court, often through lawyers.