Lincoln Park began moving to West Town and Humboldt Park by the thousands during the mid-late 1960s. In 1960, West Town had a Latino population of 1%. By 1970, that number had grown to 39%. Polish residents, who remained less upwardly mobile than the West Side's former German and Russian Jewish immigrants, remained in relatively large numbers in West Town centered around Catholic parishes. Humboldt Park began to see larger influxes of Puerto Ricans as the 1960s ended. In 1966, the first major urban Puerto Rican rebellion in the U.S. happened on Division Street, an event later known as the Division Street Riots As the 1970s began, Humboldt Park suffered from poverty, crime, and gangs, leading to another uprising in 1977. To combat this, Puerto Rican community members across the West Side created social service organizations such as the Latin American Defense Organization (LADO) and the Segundo Ruiz Belvis Cultural Center. The Young Lords, a former street turf gang from Lincoln Park, turned into a human liberation group, becoming warriors for the community by fighting further displacement and holding sit-ins at the Wicker Park Welfare Office and takeovers of institutions to implement free breakfast programs similar to the Black Panther Party. In Pilsen, Mexican-Americans and Chicanos reclaimed the area as La Diesiocho because of the 18th Street business corridor. Pilsen became a large center for mural painting by those part of the Chicano movement and for those attempting to shift the view of Pilsen as a dangerous community. La Villita, the neighborhood to the west of Pilsen and Heart of Chicago was being populated by even more Mexican-Americans, and the business corridor along 26th Street became the busiest after the Loop. During the 1980s and 1990s, the communities of the West Side continued to struggle, but hopes were being held together by social organizations, movements, and programs. The election of Mayor Harold Washington in 1983 gave hope to the West Side, especially since his election opened the door for more political representation, but his sudden death in 1987 was viewed as a serious blow to Chicago's entire Black community. Six years later, Washington's unofficial floor leader in the city council, Puerto Rican Chicagoan Luis Gutiérrez, was elected to the U.S. Congress as the Midwest's first Latino representative in Congress. Chicago's homicides reached peak numbers in the early 1990s in Humboldt Park, Austin, Lawndale, and Garfield Park. As numbers began to