This article traces the history of Dallas, Texas, (United States).

Territorial period (1500s–1838)

The Caddo inhabited the Dallas area before it was settled by Europeans. All of Texas became part of the Spanish Viceroyalty of New Spain in the 16th century. The area was also claimed by the French, but in 1819 the Adams-Onís Treaty officially placed Dallas well within Spanish territory by making the Red River the northern boundary of New Spain.Herbert E. Bolton, "Athanase de Mezieres and the Louisiana-Texas Frontier 1768-1780," Cleveland: Arthur H Clark Company, 1914.

One European who probably visited the Dallas area was Athanase de Mezieres in 1778. De Mezieres, a Frenchman in the service of the King of Spain probably crossed the West Fork of the Trinity River near present-day Fort Worth. He wrote:

Bolton argues that de Mezieres was describing the Eastern Cross Timbers and the route would have him crossing the West Fork of the Trinity River between the present Fort Worth and Arlington.

Present-day Dallas remained under Spanish rule until 1821, when Mexico declared independence from Spain, and the area became part of the Mexican state of Coahuila y Tejas. The Republic of Texas broke off from Mexico in 1836 and remained an independent country for nearly 10 years.. By Joseph Milton Nance. Retrieved on 25 September 2006.

Settlement (1839–1855)

John Neely Bryan, looking for a good trading post to serve Native Americans and settlers, first surveyed the Dallas area in 1839,Dallas Historical Society - Dallas History . Retrieved on 21 April 2006 perhaps drawn by the intersection of Caddo trails at one of the few natural fords for hundreds of miles along the wide Trinity floodplain. Bryan also knew that the planned Preston Trail was to run near the ford — the north–south route and the ford at Bryan's Bluff became more important when the United States annexed Texas in 1845.

After Bryan surveyed the area, he returned home to Arkansas. While there, a treaty was signed removing all Native Americans from Northern Texas. When he returned in November 1841, half of his customers were gone. He decided that, rather than a trading post, he would create a permanent settlement, which he founded in November 1841. In 1844 J. P. Dumas surveyed and laid out a section of blocks and streets near present downtown. The origin of the name is uncertain. The official historical marker states it was named after future Vice President George M. Dallas of Philadelphia, Pennsylvania (1845-1849). However, this is disputed. Other potential theories for the origin include his brother, Commodore Alexander James Dallas, as well as brothers Walter R. Dallas or James R. Dallas.

Early years (1856–1873)

On 2 February 1856, Dallas was granted a town charter during the Regular session of the Sixth Texas Legislature. Samuel Pryor was elected the first mayor along with a constable, a treasurer-recorder, and six aldermen.. By Jackie McElhaney and Michael V. Hazel. Retrieved on 20 April 2006. By 1860, the town's population reached 678, including 97 African Americans (mostly enslaved), as well as Belgian, French, German, and Swiss immigrants. By that year, the railroad was approaching from the south, and several stage lines were already passing through the city.

In July 1860, a fire broke out in the square, destroying most of the buildings in the business district of Dallas. Out of fear, many white residents assumed that slaves were behind it, and two abolitionists were run out of town. They lynched three African-American slaves, and officials ordered all other slaves in Dallas to be whipped, as part of event that is known as the "Texas Troubles". On the eve of the Civil War in 1861, Dallas County voted 741–237 in favor of secession. On 8 June of that year, a state of war was declared, and citizens were very supportive of the effort. The town was a long way from any battles, and suffered no damage from the war.

The Reconstruction period brought many challenges for Dallas and some benefits for the state. On 19 June 1865 (Juneteenth), Texan slaves were emancipated, as announcement of the end of the war was delayed. Many African Americans migrated to Dallas after the war for work, because the city was thriving compared to other Southern cities. They also wanted to leave rural areas to escape the supervision of whites and establish their own communities. Freedmen's towns were scattered throughout Dallas. In attempts to maintain white supremacy, white insurgent veterans established a Ku Klux Klan chapter in 1868. By 1871, Dallas legally became a city. In 1869 the Reconstruction legislature established a funding mechanism to support public education for the first time, and authorized school districts to be set up across the state.W.E.B. DuBois, Black Reconstruction, 1935/ New York: Free Press, 1989, p.560

Notable Civil War veterans include William W. Ross. The Dallas Morning News states that, “William W. and Andrew J. Ross were early land owners who came to Dallas in 1866. One was a Civil War veteran, but, both men were farmers and real estate developers.” Ross Avenue is named in honor of the two brothers and bisects the land they formerly owned.

The major north–south (Houston and Texas Central Railroad) and east–west (Texas and Pacific Railway) Texas railroad routes intersected in Dallas in 1873, thus ensuring its future as a commercial center. The arrival of the trains also meant soaring populations — the population of Dallas shot from 3,000 in early 1872 to more than 7,000 in September of the same year. New buildings and new businesses appeared daily. Dallas was the epicenter of the markets for raw materials and commodity crops, such as grains and cotton, which were shipped to the South and East. It was also the "last chance" stop for supplies for people traveling west

Industrial period (1874–1929)

The Industrial Period saw Dallas grow from a center of farming and ranching into a major, self-sustaining industrial city. The industrial growth in Dallas formed partially out of problems hurting Dallas area farmers: After buying supplies on credit during the year, farmers owed merchants the majority of their crop. Costs to ship to the coast were very high, and the price of cotton was dropping.

By 1880, the Missouri-Kansas-Texas Railroad, under the leadership of Jay Gould, reached Dallas.. By Donovan L. Hofsommer. Retrieved on 15 October 2006. In 1885, the Main Street was lit with electricity. In 1888, the Dallas Zoo opened making it the first zoological garden in the state.DallasZoo.com - General Information . Retrieved on 28 September 2006.

In 1890, Dallas annexed the city of East Dallas, which was larger geographically than Dallas. The annexation made Dallas the most populous city in Texas. In 1893, following the national financial panic, numerous industries and five Dallas banks failed. Cotton prices dipped below five cents a pound, and the lumber and flour markets had all but vanished, so many people began leaving the city. By 1898, the city began to recover and grow again. In 1894, Parkland Memorial Hospital opened just west of Oak Lawn.DallasNews.com: Hidden History of Dallas (1876-1900) . Retrieved on 12 September 2006. In 1903, Oak Cliff, a city across the Trinity River, was annexed.

By the turn of the 20th century, Dallas was the leading drug, book, jewelry, and wholesale liquor market in the Southwestern United States. It also quickly became the center of trade in cotton, grain, and even buffalo. It was the world's leading inland cotton market, and it still led the world in manufacture of saddlery and cotton gin machinery. During the early 20th century, Dallas transformed from an agricultural center to a center of banking, insurance, fashion retailing and other businesses. Founded here were Neiman Marcus and the now-defunct A. Harris and Sanger Brothers ready-to-wear stores. The 14-story Praetorian Building was the first skyscraper west of the Mississippi River and the tallest building in Texas.

Texan blacks, Mexican Americans and poor whites were excluded from much of the progress by being disfranchised when the state legislature imposed a poll tax in 1902. In addition, it had earlier established Jim Crow laws, making racial segregation legal and imposing white supremacy.

In 1908, the Trinity River flooded, reaching a depth of and a width of . Five people died, 4,000 were left homeless, and property damages were estimated at US$2.5 million at the time of the flood. After the flood, the city wanted to take action to control the Trinity and to build a bridge linking Oak Cliff and Dallas. In 1911, George Kessler, a city planner, created a plan for both the Trinity and the city. His plans were initially ignored but ultimately brought back, updated, in the 1920s. By the 1930s, many of his plans had been realized.

The expansion of industrial jobs attracted migrants from across the region, as well as waves of immigrants, first from southern and eastern Europe. The area bordered by Maple Avenue, McKinney Avenue and the MKT (Missouri, Kansas, Texas) Railroad became known as Little Mexico following 1910, when it was settled by a wave of Mexican immigrants, who left the disruption following the defeat of President Porfirio Diaz and his government, and the start of the Mexican Revolution (1910–1920). Mexicans from all walks of life came to the Dallas area to take jobs in factories, agriculture and the railroads.

A white mob of hundreds of people lynched a Black man, Allen Brooks, in 1910. The mob tortured Brooks, then killed him at the downtown intersection of Main and Akard by hanging him from a decorative archway inscribed with the words "Welcome Visitors." Thousands of men, women, and children came to gawk at the torture scene, collecting keepsakes of the murder. It was commemorated with picture postcards. No one was charged with a crime because authorities claimed they could not find anyone responsible.

In 1911, Dallas was chosen as the location of the eleventh regional branch of the Federal Reserve Bank. That year millionaire Dr. William Worthington Samuell, purchased the first ambulance for the city of Dallas, and later donated thousands of dollars to expand Parkland Hospital.

The growth of aviation generated new development in the city in World War I. Love Field was established as an aviation training ground. Fair Park was the home of Camp Dick, a training facility as well. The city purchased Love Field in 1927 to use as a municipal airport. In 1915, Southern Methodist University opened.

Oil period (1930–1945)

Despite the onset of the Great Depression, business in construction was flourishing in 1930. That year, Columbus Marion "Dad" Joiner struck oil east of Dallas in Kilgore, spawning the East Texas oil boom. Dallas quickly became the financial center for the oil industry in Texas and Oklahoma. Banks made loans to develop the oil fields, and Dallas became the financial center for all oil fields in the Texas Panhandle, the Permian Basin, East Texas, Gulf Coast, and Oklahoma. This put off most thoughts of depression until the middle of 1931, when falling prices and overproduction affected the city economy negatively. By then, more than 18,000 people in the city were unemployed. Before the New Deal policy began, the city had a work-for-food program that helped many.. By Ben H. Procter. Retrieved on 20 April 2006.

After a long campaign in the years leading up to 1936, the state of Texas chose Dallas as the site of the 1936 Texas Centennial Exposition. More than fifty buildings were built for the Exposition in Fair Park, and 10 million visitors came to see the US$25 million spectacle (US$ in today's terms).

During World War II, Dallas served as a manufacturing center for the war effort. In 1942, the Ford Motor plant in Dallas converted to war-time production, producing only jeeps and military trucks. In 1943 the city began war rationing, with 376,085 ration books distributed.