The international character San Francisco has had since its founding is witnessed today by large numbers of immigrants from Asia and Latin America. With 39 percent of its residents born overseas, San Francisco has numerous neighborhoods filled with businesses and civic institutions catering to new arrivals. In particular, the arrival of many ethnic Chinese, which accelerated beginning in the 1970s, complemented the already-established community based in Chinatown and has transformed the annual Chinese New Year Parade into the largest cultural event of its kind.
Following the arrival of writers and artists of the 1950s, who established the modern coffeehouse culture, and the social upheavals of the 1960s, San Francisco became one of the epicenters of liberal activism, with Democrats, Greens, and progressives dominating city politics. Indeed, San Francisco has not given the Republican candidate for president greater than 20 percent of the vote since 1988. The gay rights contributions and leadership the city has shown since the 1970s has resulted in the powerful presence gays and lesbians have in civic life. A popular destination for gay tourists, it hosts San Francisco Pride, the world's best-known gay pride parade and festival.
Although the centralized commerce and shopping districts downtown, including the Financial District and the area around Union Square, are well-known, San Francisco is also characterized by a rich street environment featuring many mixed-use neighborhoods anchored around central commercial corridors to which residents and visitors alike can walk. They feature a mix of businesses and restaurants catering to the daily needs of the community and drawing in visitors. Some are highly gentrified, dotted with boutiques, cafes and nightlife, such as Union Street in Cow Hollow, and 24th Street in Noe Valley. Others are less so, including Irving Street in the Sunset, or Mission Street in the Mission. This approach has influenced the South of Market redevelopment, with businesses and neighborhood services rising alongside highrise residences.
Museums: The Museum of Modern Art (SFMOMA) contains 20th century and contemporary pieces. It moved to its iconic building in South of Market in 1995 and attracts 600,000 visitors annually. The Palace of the Legion of Honor contains primarily European works. The De Young Museum and the Asian Art Museum have significant anthropological and non-European holdings.
The Palace of Fine Arts, originally built for the 1915 Panama-Pacific Exposition, today houses the Exploratorium, a popular science museum dedicated to teaching through hands-on interaction. The California Academy of Sciences is a natural history museum and hosts the Morrison Planetarium and Steinhart Aquarium. The San Francisco Zoo cares for a total of about 250 animal species out of which 39 have been deemed endangered or threatened.
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