On This Day
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Yerba Buena renamed San Francisco

San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 827,526 in 2024.

San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 827,526 in 2024. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023. Some 4.6 million residents live in the city's metropolitan statistical area, which is the 13th-largest in the United States. Around 9.2 million live in the San Jose–San Francisco–Oakland combined statistical area, the fifth-largest in the United States.

Prior to European settlement, San Francisco was inhabited by the Yelamu Ohlone.

Historical Significance

San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 827,526 in 2024.

Events Before

  1. Legislative Assembly of Yucatán declares independence from Mexico

    Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America and borders the United States to the north, and Guatemala and Belize to...

  2. Thornton Affair: Open conflict begins over the disputed border of Texas, triggering the Mexican–American War

    Texas ( TEK-səss) is the most populous state in the South of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and an...

  3. First officially recognized baseball game (played by Cartwright Rules) - NY Nine defeats the NY Knickerbockers 23-1 in H

    First officially recognized baseball game (played by Cartwright Rules) - NY Nine defeats the NY Knickerbockers 23-1 in Hoboken, New Jersey

  4. US Act of Congress passes establishment of the Smithsonian Institution, now the world's largest museum and research comp

    US Act of Congress passes establishment of the Smithsonian Institution, now the world's largest museum and research complex

  5. Italian "The Barber of Seville" opera composer Gioachino Rossini (54) marries 2nd wife, French model Olympe Pélissier (4

    Italian "The Barber of Seville" opera composer Gioachino Rossini (54) marries 2nd wife, French model Olympe Pélissier (47) in Paris, France

Events After

  1. British forces forcibly seize the port of San Juan del Norte (later Greytown) from Nicaragua

    British forces forcibly seize the port of San Juan del Norte (later Greytown) from Nicaragua

  2. James Marshall finds gold in Sutter's Mill in Coloma, California [1]

    The California gold rush (1848–1855) was a gold rush in California, which began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California.

  3. Treaty of Guadalupe Hidalgo ends the Mexican–American War. Mexico loses 55 percent of its territory to the US, including

    Treaty of Guadalupe Hidalgo ends the Mexican–American War. Mexico loses 55 percent of its territory to the US, including California, Nevada and Utah in exchange for $15 million.

  4. Karl Marx and Friedrich Engels publish "The Communist Manifesto" in London

    The Communist Manifesto (German: Das Kommunistische Manifest), originally the Manifesto of the Communist Party (Manifest der Kommunistischen Partei), is a political pamphlet written by Karl Marx and…

  5. Confederate General James Longstreet (27) weds Maria Louisa Garland in Lynchburg, Virginia

    Confederate General James Longstreet (27) weds Maria Louisa Garland in Lynchburg, Virginia

More from the 1840s

Richard Wagner's opera "The Flying Dutchman" premieres in Dresden, Kingdom of Saxony

Richard Wagner's opera "The Flying Dutchman" premieres in Dresden, Kingdom of Saxony

Explorer and medical missionary David Livingstone (31) weds Mary Moffat

David Livingstone (19 March 1813 – 1 May 1873) was a Scottish doctor, Congregationalist, pioneer Christian missionary with the London Missionary Society, and an explorer in Africa.

First recorded bowling match in the US takes place at Knickerbocker Alleys, New York

First recorded bowling match in the US takes place at Knickerbocker Alleys, New York

New York Illustrated News, the first illustrated weekly magazine in the US, publishes its first issue in New York

The Illustrated London News, founded by Herbert Ingram and first published on Saturday 14 May 1842, was the world's first illustrated weekly news magazine.

Frequently Asked Questions

What happened on January 30, 1847?
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 827,526 in 2024. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023.
Why is Yerba Buena renamed San Francisco significant?
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 827,526 in 2024.

Explore More

January 30 in HistoryYear 1847