"Queen West" is local vernacular which generally refers to the collection of neighbourhoods that have developed along and around the thoroughfare. Many of these were originally ethnically-based neighbourhoods. The earliest example from the mid-19th century was Claretown, an Irish immigrant enclave in the area of Queen Street West and Bathurst Street. From the 1890s to the 1930s, Jewish immigrants coalesced in the neighbourhood known as "the Ward", for which Queen Street between Yonge and University served as the southern boundary. The intersection of Queen and Bay Streets also served as the southern end of a thriving Chinatown in the 1930s. From the 1920s to the 1950s, the area was also the heart of Toronto's Polish and Ukrainian communities. From the 1950s through the 1970s, many immigrants from Portugal settled in the area. Gentrification over the past twenty years has caused most recent immigrants to gradually move to more affordable areas of the city as desirability of the area drives up prices.