Bergensk or Bergen dialect is a dialect of Norwegian used in Bergen, Norway. It is easy for Norwegians to recognise, as it is more distinguishable from other dialects in Vestland than, for example, the Stavanger dialect (Stavangersk) from the dialects of Rogaland, and the Trondheim dialect from Trøndelag dialects. Many Low German and German words found their way to Norwegian through the Bergen dialect, which makes up almost 35% of the basic Norwegian vocabulary. The long history of multi-lingual coexistence in Bergen has made the dialect more susceptible to simplifications, in order to ease communication, and the influence of Danish and Low German are apparent in the modern Bergen dialect's phonetics. Bergen's strong foreign influence, such as Hanseatic League merchants in the period from about 1350 to 1750, had a profound effect on the Bergen dialect. The Hanseatic merchants spoke varieties of Low German, and perhaps a pidgin in dealings with the locals. Bergen was the only major Norwegian city during the Dano-Norwegian union from 1536 to 1814, and the Bergen dialect absorbed more of language trends from abroad, such as from Danish, than other Norwegian dialects. The written standard of the time, was based on the Copenhagen dialect of the Danish language, and it continued to affect Bergensk well into the 20th century. A Dano-Norwegian koiné, resembling the non-standard Riksmål, is still spoken, although in recent decades has become much more similar to Bokmål. Bergensk is one of two dialects in Norway with only two grammatical genders, the other being the dialect spoken in Lyngen. All others have three (excepting sociolects in other Norwegian urban areas). The feminine gender disappeared in the 16th century. One theory is that this was partly fueled by an influence from Danish, which became the written language and already had abolished the distinction between masculine and feminine forms, and as a simplification to ease communication between Norwegians and Germans or between people from Bergen and other parts of Norway.