Through the 1970s and 1980s, the influx of Guangdong and Hong Kong immigrants began to develop newer portions of Manhattan's Chinatown going north of Canal Street and then later the east of the Bowery. However, until the 1980s, the western section was the most primarily fully Chinese developed and populated part of Chinatown and the most quickly flourishing busy central Chinese business district with still a little bit of remaining Italians in the very northwest portion around Grand Street and Broome Street, which eventually all moved away and became all Chinese by the 1990s. Although the portion of Chinatown that is east of the Bowery—which is considered part of the Lower East Side already started developing as being part of Chinatown since the influx of Chinese immigrants started spilling over into that section since the 1960s, however until the 1980s, it was still not developing as quickly as the western portion of Chinatown because the proportion and concentration of Chinese residents in the eastern section during that time was comparatively growing at a slower rate and being more scattered than the western section in addition to the fact that there was a higher proportion of remaining non-Chinese residents consisting of Jewish, Puerto Ricans, and a few Italians and African Americans than Chinatown's western section.