Question: When did humans begin living in the city George Treat is from?

full_context: Document 1: San Francisco: San Francisco was founded on June 29, 1776, when colonists from Spain established Presidio of San Francisco at the Golden Gate and Mission San Francisco de Asís a few miles away, all named for St. Francis of Assisi. The California Gold Rush of 1849 brought rapid growth, making it the largest city on the West Coast at the time. San Francisco became a consolidated city - county in 1856. After three - quarters of the city was destroyed by the 1906 earthquake and fire, San Francisco was quickly rebuilt, hosting the Panama - Pacific International Exposition nine years later. In World War II, San Francisco was a major port of embarkation for service members shipping out to the Pacific Theater. It then became the birthplace of the United Nations in 1945. After the war, the confluence of returning servicemen, massive immigration, liberalizing attitudes, along with the rise of the ``hippie ''counterculture, the Sexual Revolution, the Peace Movement growing from opposition to United States involvement in the Vietnam War, and other factors led to the Summer of Love and the gay rights movement, cementing San Francisco as a center of liberal activism in the United States. Politically, the city votes strongly along liberal Democratic Party lines.
Document 2: Richmond, Virginia: Richmond emerged a decade after the smoldering rubble of the Civil War to resume its position as an economic powerhouse, with iron front buildings and massive brick factories. Canal traffic peaked in the 1860s and slowly gave way to railroads, allowing Richmond to become a major railroad crossroads, eventually including the site of the world's first triple railroad crossing. Tobacco warehousing and processing continued to play a role, boosted by the world's first cigarette-rolling machine, invented by James Albert Bonsack of Roanoke in 1880/81. Contributing to Richmond's resurgence was the first successful electrically powered trolley system in the United States, the Richmond Union Passenger Railway. Designed by electric power pioneer Frank J. Sprague, the trolley system opened its first line in 1888, and electric streetcar lines rapidly spread to other cities across the country. Sprague's system used an overhead wire and trolley pole to collect current, with electric motors on the car's trucks. In Richmond, the transition from streetcars to buses began in May 1947 and was completed on November 25, 1949.
Document 3: George Treat: George Treat (1819–1907) was an early Gold Rush-era pioneer in the Mission District, of San Francisco, a businessman, abolitionist, a member of the first Committee of Vigilance of San Francisco, and horse racing enthusiast. He was influential to the early physical development of the Mission District and its eventual shift to urbanization. Treat was responsible for the construction and management of the Pioneer Race Course, a horse racing track built in San Francisco in 1851 and in helping with the creation of the San Francisco-San Jose Railway when he sold the land.
Document 4: San Diego: San Diego has been called ``the birthplace of California ''. Historically home to the Kumeyaay people, it was the first site visited by Europeans on what is now the West Coast of the United States. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, forming the basis for the settlement of Alta California 200 years later. The Presidio and Mission San Diego de Alcalá, founded in 1769, formed the first European settlement in what is now California. In 1821, San Diego became part of the newly independent Mexico, which reformed as the First Mexican Republic two years later. California became part of the United States in 1848 following the Mexican -- American War and was admitted to the union as a state in 1850.
Document 5: San Francisco: Upon independence from Spain in 1821, the area became part of Mexico. Under Mexican rule, the mission system gradually ended, and its lands became privatized. In 1835, Englishman William Richardson erected the first independent homestead, near a boat anchorage around what is today Portsmouth Square. Together with Alcalde Francisco de Haro, he laid out a street plan for the expanded settlement, and the town, named Yerba Buena, began to attract American settlers. Commodore John D. Sloat claimed California for the United States on July 7, 1846, during the Mexican–American War, and Captain John B. Montgomery arrived to claim Yerba Buena two days later. Yerba Buena was renamed San Francisco on January 30 of the next year, and Mexico officially ceded the territory to the United States at the end of the war. Despite its attractive location as a port and naval base, San Francisco was still a small settlement with inhospitable geography.
Document 6: Jacksonville, Florida: The area of the modern city of Jacksonville has been inhabited for thousands of years. On Black Hammock Island in the national Timucuan Ecological and Historic Preserve, a University of North Florida team discovered some of the oldest remnants of pottery in the United States, dating to 2500 BC. In the 16th century, the beginning of the historical era, the region was inhabited by the Mocama, a coastal subgroup of the Timucua people. At the time of contact with Europeans, all Mocama villages in present-day Jacksonville were part of the powerful chiefdom known as the Saturiwa, centered around the mouth of the St. Johns River. One early map shows a village called Ossachite at the site of what is now downtown Jacksonville; this may be the earliest recorded name for that area.
Document 7: Jasper O'Farrell: Jasper O'Farrell (1817–1875) was the first surveyor for San Francisco. He designed the "grand promenade" that became today's Market Street. O'Farrell Street in San Francisco is named after him.
Document 8: William Jackson Palmer: Heading west in 1867, while Palmer helped build the Kansas Pacific Railway he met a young English doctor, Dr. William Abraham Bell who became his friend and partner in most of his business ventures in which we would generally find Palmer as president with Bell as vice president. The two men are best known as co-founders of the Denver and Rio Grande Western Railroad (Rio Grande). The Rio Grande and its successors eventually operated the largest network of narrow gauge railroad in the United States, and ultimately became part of the 21st century Union Pacific Railroad.
Document 9: William Chandler (businessman): Chandler participated in several business ventures and abolitionist societies with Thomas Garrett, a Wilmington merchant and stationmaster on the Underground Railroad.
Document 10: George W. Minns: George Washington Minns (October 6, 1813 in Boston, Massachusetts – January 14, 1895 in Brookline, Massachusetts) and graduated from Harvard College with the class of 1836 and received a law degree from the Howard Dane Law School of Harvard. He practiced law in Massachusetts for several years before moving to California. After the Gold Rush caused the collapse of his law practice and Minns lost all of his savings, he became a teacher at the Union Grammar School, the first California high school, and became principal of the Normal School the following year. He was an American teacher, notable for running the Minns Evening Normal School, which was established in San Francisco, California, in 1857 in order to train teachers for the city's public school system. His normal school, named the California State Normal School, was the first publicly funded institution of higher learning in the state. George Minns was principal of the school from 1857-1862 and 1865-1866. The California State Normal School was transferred to the State of California in 1862, and is now known as San José State University.
Document 11: Oklahoma: Evidence exists that native peoples traveled through Oklahoma as early as the last ice age. Ancestors of the Wichita and Caddo lived in what is now Oklahoma. The Panhandle culture peoples were precontact residents of the panhandle region. The westernmost center of the Mississippian culture was Spiro Mounds, in what is now Spiro, Oklahoma, which flourished between AD 850 and 1450. Spaniard Francisco Vásquez de Coronado traveled through the state in 1541, but French explorers claimed the area in the 1700s and it remained under French rule until 1803, when all the French territory west of the Mississippi River was purchased by the United States in the Louisiana Purchase.
Document 12: Agoston Haraszthy: He was the first Hungarian to settle permanently in the United States and only the second to write a book about the country in his native language. He is remembered in Wisconsin as the founder of the oldest incorporated village in the state. He also operated the first commercial steamboat on the upper Mississippi River. In San Diego, he is remembered as the first town marshal and the first county sheriff. In California he introduced more than three hundred varieties of European grapes.
Document 13: History of San Francisco: The earliest evidence of human habitation in what is now the city of San Francisco dates to 3000 BC. Native Americans who settled in this region found the bay to be a resource for hunting and gathering, leading to the establishment of many small villages. Collectively, these early Native Americans are now known as the Ohlone, and the language they spoke belonged to the Miwok family. Their trade patterns included places as far away as Baja California, the Mojave Desert and Yosemite.
Document 14: History of rail transportation in the United States: Railroads played a large role in the development of the United States from the industrial revolution in the North - east (1810 -- 1850) to the settlement of the West (1850 -- 1890). The American railroad mania began with the Baltimore and Ohio Railroad in 1826 and flourished until the Panic of 1873 bankrupted many companies and temporarily ended growth.
Document 15: Suisun people: The Suisunes (also called the Suisun and the "People of the West Wind") were a tribe of Native Americans that lived in Northern California's Suisun Marsh regions of Solano County, California between what is now Suisun City, Vacaville and Putah Creek around 200 years ago. The Suisunes' main village, Yulyul, is believed to be where Rockville, California is located today. Father Abella, visitor to the tribe in 1811, indicated they resided in the present location of Fairfield, north of the Suisun Bay. One of the Suisunes' primary food sources was acorns. Their diet also included fish as well as miner's lettuce. Their huts (as recorded by the Spaniards in 1817) were conical wikiups made of rushes or tule thatch.
ground_truth: 3000 BC
sub_queries: What city is George Treat from? Answer: San Francisco
when did humans begin to live in San Francisco Answer: 3000 BC