Prior to the industrial revolution and the ensuing pollution of the rivers, salmon were common in the rivers Rhine, Elbe, and Oder

Prior to the discovery of the Haber process, ammonia had been difficult to produce on an industrial scale.

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

Prior to taking action to initiate industrial democracy, workers would need to educate themselves with technical and managerial knowledge in order to operate industry.

Prior to 1941, the majority of fiber came from industrial lands.

Prior to the industrial revolution, a " village smithy " was a staple of every town.

Prior to the industrial revolution, most iron was obtained from widely available goethite or bog ore, for example during the American Revolution and the Napoleonic wars.

Prior to 1913, the town, situated on the western bank of the Pawtuxet River, was the population and industrial center of the larger town of Warwick.

Prior to his term as Secretary of the Treasury, O ' Neill was chairman and CEO of Pittsburgh-based industrial giant Alcoa and chairman of the RAND Corporation.

Prior to about 1975, all computers were typically large industrial / commercial machines, often in a centralized location with a dedicated room-sized cooling system.

Prior to the advent of the Haber-Bosch process, an energy-intensive method developed to carry out industrial nitrogen fixation and create chemical nitrogen fertilizer, most nitrogen introduced to ecosystems arose through biological nitrogen fixation ( Galloway et al.

Prior to the band's start, Urine released a mostly industrial solo album called " Mindless Self-Indulgence.

Prior to the industrial era, the river contained many anadromous fish, in particular the Atlantic salmon.

Prior to the 1972 federal election, Canadian Prime Minister Pierre Elliot Trudeau announced the Harbourfront project, which would expropriate the industrial port lands from York Street west to Bathurst Street, south of Queen's Quay and convert them to a cultural and residential district for Toronto, similar to the Granville Island district in Vancouver.

Prior to this project they had an off ramp only from the Mornington Peninsula Freeway into the industrial area.

Prior to 1978, flooding of the Neuse River caused extensive damage to public and private properties including roadways, railroads, industrial sites and farmlands.

Prior to the industrial revolution, the area to the east was occupied by the inaccessible and waterlogged marshes of the Humberhead Levels, whilst to the west was the Barnsdale Forest, an area associated with the legend of Robin Hood and various outlaws and bandits who preyed upon travellers on the Great North Road.

Prior to and during the events of StarCraft, Aiur was the political, military and industrial center of the Protoss Empire.

Prior to this work, central London's drains were built primarily to cope with rain water, and the growing use of flush toilets frequently meant that they became overloaded, flushing mud, shingle, sewage and industrial effluent into the River Thames.

Prior to entering politics, Abel studied economics, industrial sociology, political science, labour history and labour law at the Labour College of Canada in Ottawa.

Prior to his election, he was a shipper receiver and also worked in places such as Stelco, Dofasco and other industrial jobs.

Prior to 1995 when the Adelaide to Melbourne line was converted to standard gauge, SteamRanger was based at Dry Creek, an industrial suburb in the northern suburbs of Adelaide, and home to the main road-rail freight depots in Adelaide.

Prior to the advent of industrial revolution people in this part of South East Asia travelled from one island to the other by means of vinta ( Beggong in Samadialect ) equipped with sail and paddle ( Dayung ).

Prior to Work Choices, unfair dismissal protections existed in Awards or through state industrial relation commissions.

Prior to the revolution, power was concentrated in the hands of the President of the Republic and the National Democratic Party which retained a super-majority in the People's Assembly.

Prior and after the failed revolution, the Bolshevik leadership voluntarily resided in exile to evade Tsarist Russia's secret police, such as Lenin who resided in Switzerland.

Prior to the Tunisian revolution there were four private radio stations operating in Tunisia: Mosaïque FM, Chems FM, Jawhara FM and Express FM.

Prior to the revolution, the Bolshevik doctrine of democratic centralism argued that only a tightly knit and secretive organization could successfully overthrow the government ; after the revolution, they argued that only such an organization could prevail against foreign and domestic enemies.

Prior to the Cuban revolution of 1959, there were regular ferry and airplane services between Key West and Havana.

Prior to the " behavioralist revolution ", political science being a science at all was disputed.

Prior to the October revolution in 1917, the tune was played by the Moscow Kremlin carillon every day at midday.

Prior to the Tunisian revolution Internet censorship in Tunisa was extensive.

Prior to the revolution, Gamal was deputy secretary-general of the then-ruling and now-dissolved National Democratic Party, and head of its influential policies committee.

Prior to the call for revolution, members of the Nationalist Party had stored weapons in Canales ' house in Jayuya.

Prior to the 2011 revolution which dispossessed Hosni Mubarak, elections in Egypt were criticized by the domestic opposition as well as international observers as being grossly fraudulent, bordering on show elections.

Prior to the 2011 Tunisian revolution, Elections in Tunisia were held every five to six years, and elected both the president and members of both legislative branches to the national government of the Republic of Tunisia.

Prior to the revolution, the President was elected to five-year terms with no term limit.

Prior to the 2010 revolution, the United States Peace Corps was very active in the region, sending volunteers to serve in the education and small business sectors.

Prior to the no-fault divorce revolution, a divorce could be obtained only through a showing of fault of one of the parties in a marriage.

Prior to the Islamic revolution in Iran and the cut off of diplomatic relations between the two countries, America and American universities were very popular among Iranians, and this popularity was a major force in drawing numerous Iranian students to the United States.

Prior to the revolution American Methodism consisted of itinerant preachers commissioned by John Wesley the founder of the Methodist societies in England.