text: 1907 riots The situation was exacerbated when, in 1907, the United States began prohibiting Japanese immigrants from accessing the mainland US through Hawaii, resulting in a massive influx (over 7,000 as compared to 2,042 in 1906) of Japanese immigrants into British Columbia. Largely as a result, on August 12 that year, a group of Vancouver labourers formed an anti-Asiatic league, known as the Asiatic Exclusion League, with its membership numbering "over five hundred." On September 7, some 5,000 people marched on Vancouver City Hall in support of the League, where they had arranged a meeting with presentations from both local and American speakers. By the time of the meeting, it was estimated that at least 25,000 people had arrived at the City Hall and, following the speakers, the crowd broke out in rioting, marching into Chinatown and Japantown.
  The rioters stormed through Chinatown first, breaking windows and smashing store fronts. Afterwards, the rioters turned to the Japanese-Canadian neighbourhood. Alerted by the previous rioting, Japanese Canadians in Little Tokyo were able to repel the mob without any serious injury or loss of life. After the riot, the League and other nativist groups used their influence to push the government into an arrangement similar to the United States' Gentlemen's Agreement, limiting the number of passports given to male Japanese immigrants to 400 per year. Women were not counted toward the quota, so "picture brides," women who married by proxy and immigrated to Canada to join (and in many cases, meet for the first time) their new husbands, became common after 1908. The influx of female immigrants—and soon after, Canadian-born children—shifted the population from a temporary workforce to a permanent presence, and Japanese-Canadian family groups settled throughout British Columbia and southern Alberta.