Chisholm Trail Casino is a casino that opened in Duncan, Oklahoma in October, 2004.
 The 22,000 sqft casino is owned and operated by the Chickasaw Nation and is open 24 hours daily.
 Located along the site of the historic Chisholm Trail cattle drive, the casino is five miles north of downtown Duncan on Highway 81, south of Highway 7.
 Chisholm Trail is owned and operated by the Chickasaw Nation.
 The casino is 70 miles south of Norman, Oklahoma, and the Nation’s sister gaming facility, Riverwind Casino.
 Chisholm Trail is 100 miles northwest of WinStar World Casino, another Chickasaw Nation gaming center, located in Thackerville, Oklahoma.
Charles W. Blackwell (July 30, 1942 – January 2, 2013) was an American Chickasaw Nation diplomat and lawyer.
 He served as the first Ambassador of the Chickasaw Nation to the United States of America from 1995 until his death in 2013.
 Blackwell, who represented the Chickasaw Nation of the U.S. state of Oklahoma, was the first Ambassador of any Native American tribal government to the government of the United States.
Gold Mountain Casino is a Native American casino in Ardmore, Oklahoma, owned and operated by the Chickasaw Nation.
 Originally opened in 2002 as Ardmore Gaming, the facility has grown steadily and today features more than 300 gaming machines.
 The casino is open 24 hours a day, seven days a week.
 The 8620 sqft casino is located on the corner of P Street N.E. and Sam Noble Parkway, and can be accessed via Interstate 35, exit 33.
 It is a short distance from the Ardmore Convention Center and the Hardy Murphy Coliseum.
 Gold Mountain is about 34 miles north of WinStar World Casino in Thackerville, Oklahoma, and 77 miles south of Riverwind Casino in Norman, Oklahoma, which are also Chickasaw-owned gaming facilities.
Chisholm Spring was a small trading post in Oklahoma Territory, two miles east of present-day Asher, Oklahoma.
 The post was established by frontier cattleman Jesse Chisholm (for whom the famous Chisholm Trail was named ) in 1847.
 The settlement attracted many plains Indians, but efforts to create a town were aborted when Chisholm moved to Kansas in 1862.
The McGranahan Portion of the Chisholm Trail Roadbed is a remnant of the Chisholm Trail, a cattle trail that ran north-south between Texas and Kansas through the Indian Territory.
 It is the only portion of the Chisholm Trail through Oklahoma listed on the National Register.
The Chickasaw Nation is a federally recognized Native American nation, located in Oklahoma.
 They are one of the members of the Five Civilized Tribes.
 The Chickasaw Nation was created after the Chickasaw people were forcibly removed by the US federal government to Indian Territory in the 1830s.
 Their removal was part of a larger effort by the federal government to relocate Native American peoples from the eastern side of the Mississippi River; in the Southeast, these were the Cherokee, Muscogee (Creek), Seminole, Chickasaw, and Choctaw nations.
 The removals became known as the "Trail of Tears".
WinStar World Casino and Resort is a hotel and casino located near the Oklahoma–Texas state line, 1 mi north of the Red River, at Exit 1 off Interstate 35 and Winstar Boulevard in Thackerville, Oklahoma.
 The casino opened as the WinStar Casino in 2004, and was expanded (with a 395-room hotel tower) and renamed the WinStar World Casino in 2009, with its 519000 sqft of casino floor making it the largest casino in the state of Oklahoma.
 In August 2013, WinStar Resorts completed a major expansion project, which added a new 1000-room second hotel tower that was divided into two phases; this also added a new casino that is attached to the tower.
 As a result of the completion of this expansion, the casino overtook Foxwoods Resort Casino to become the largest casino in the United States based on gaming floor space.
 WinStar has over 7,400 electronic games, 46 table poker rooms, 99 total table games, Racer's off-track betting, High Limit Room, keno, and bingo.
Cyrus Harris (1817-1888), a mixed blood Chickasaw born in Mississippi, was elected the first Governor of the Chickasaw Nation, and served five non-consecutive two-year terms.
 Although his formal schooling was limited at an elementary level, he became fluent in both the English and Chickasaw languages.
 He and his family relocated to Indian Territory in 1837, where he was employed in business and also served as an interpreter and developed a keen interest in Chickasaw politics.
 In 1856, he was elected to his first term as Governor of the newly-established Chickasaw Nation His accomplishments included organizing a national government after the Chickasaw Nation and Choctaw Nation formally separated into two distinct entities.
 He also executed a formal alliance between his nation and the Confederate States of America after the outbreak of the American Civil War.
 After the cessation of hostilities, he played a major role in the recovery of the nation from its devastated condition.
 He retired from politics in 1874, after serving his fifth term as Governor.
 He died in 1887 at his home in Mill Valley, and was buried at the cemetery in Mill Valley.
Overton "Sobe" Love (1823-1906) was a Chickasaw judge in Indian Territory in the nineteenth century.
 Love was born in Holly Springs, Mississippi  1823 , the son of Colonel Henry W. Love.
 Overton was among the Chickasaw forced to move to Indian Territory in the 1840s during Indian removal.
 In Indian Territory, He was one of the largest landowners in the Chickasaw Nation, farming and raising cattle on 8000 acre of Red River bottomland.
 Love was a judge in the Pickens District of the Chickasaw Nation for many years.
 As a judge in the Dawes Commission era, Love worked to add tribal members to the Chickasaw Roll of Citizenship.
 Love also served as a Chickasaw representative to Congress and was named Treaty Commissioner on behalf of the Chickasaw Nation.
Fred Waite, born Frederick Tecumseh Waite (September 23, 1853 – September 24, 1895), was a Chickasaw cowboy who joined Billy the Kid's gang.
 His father was a farmer and operated a trading store and stage stop southeast of Pauls Valley in the Chickasaw Nation.
 Waite left Indian Territory to work as a cowboy in the New Mexico Territory.
 While working for John Tunstall as a ranch hand, he met Bill Bonney and several other men who worked for Tunstall.
 After Tunstall was killed in the "Lincoln County war", Bonney, Waite and the others called themselves the Regulators while they pursued Tunstall's killers.
 After that, they became known as the "Billy the Kid gang."
 In 1880, Waite left the gang, returning to live in the Chickasaw Nation.
 Waite married, became a rancher and started a family.
 He lived a law-abiding life thereafter and became involved in Choctaw and Chickasaw politics.
 Elected to the legislature as a representative both as a representative and as a senator, he was even elected Speaker of the House for three sessions.
 Then he was appointed Attorney General of the Chickasaw Nation.
 He died of rheumatism at the age of 42.

Question: In what year did the Chickasaw Nation open Win Star World Casino just 100 miles away from Chisholm Trail Casino?
Answer: 2004