paragraph_text: In February 20, 1988, after a week of growing demonstrations in Stepanakert, capital of the Nagorno-Karabakh Autonomous Oblast (the Armenian majority area within Azerbaijan Soviet Socialist Republic), the Regional Soviet voted to secede and join with the Soviet Socialist Republic of Armenia. This local vote in a small, remote part of the Soviet Union made headlines around the world; it was an unprecedented defiance of republic and national authorities. On February 22, 1988, in what became known as the "Askeran clash", two Azerbaijanis were killed by Karabakh police. These deaths, announced on state radio, led to the Sumgait Pogrom. Between February 26 and March 1, the city of Sumgait (Azerbaijan) saw violent anti-Armenian rioting during which 32 people were killed. The authorities totally lost control and occupied the city with paratroopers and tanks; nearly all of the 14,000 Armenian residents of Sumgait fled.

paragraph_text: In 2007, Corum became the official bracelet manufacturer for the WSOP. Some of the 2007 World Series of Poker champions received both a watch and a bracelet from Corum. Corum designed four variations for the 2007 World Series of Poker Bracelets. The standard version that is presented to 53 winners features 53 diamonds. The Ladies World Champion receives a bracelet that is adorned with four black diamonds, two rubies and 87 blue sapphires. The $50,000 HORSE Champion Bracelet has 91 black diamonds and two rubies. The World Series of Poker Main Event Bracelet has 120 diamonds on 136 grams of 18 carat (75 percent) white gold. The value of the 2007 bracelets have not been released, but the typical price of a Corum watch ranges from $1,500 -- $30,000 +.

paragraph_text: In 1860, North Carolina was a slave state, in which one-third of the population was enslaved. This was a smaller proportion than in many Southern states. The state did not vote to join the Confederacy until President Abraham Lincoln called on it to invade its sister state, South Carolina, becoming the last or second-to-last state to officially join the Confederacy. The title of "last to join the Confederacy" has been disputed; although Tennessee's informal secession on May 7, 1861, preceded North Carolina's official secession on May 20, the Tennessee legislature did not formally vote to secede until June 8, 1861.

paragraph_text: The Catoca diamond mine is the fourth largest diamond mine in the world, and is located in Angola. The mine is owned by a consortium of international mining interests, including Endiama (the state mining company of Angola) (32.8% ownership), Alrosa of Russia (32.8%), Odebrecht of Brazil (16.4%), and the Diamond Finance CY BV Group (16.8%). The mine is located on a kimberlite pipe.

paragraph_text: Town Line is a hamlet and census-designated place (CDP) in Erie County, New York, United States. The population was 2,367 at the 2010 census. It is part of the Buffalo–Niagara Falls Metropolitan Statistical Area. The community is located on the boundary between the towns of Lancaster and Alden. Town Line is notable for having held a nonbinding vote to secede from the United States in 1861, and for having held a ceremonial vote to rejoin the United States in 1946.

paragraph_text: The William R. Snodgrass Tennessee Tower (also known as the Tennessee Tower) is a skyscraper in downtown Nashville, Tennessee, that houses Tennessee government offices. The tower was built for the National Life and Accident Insurance Company and served as its National Life Center until the State of Tennessee acquired it on January 3, 1994. More than 1,000 state employees who had been assigned to numerous locations now work in the building.

paragraph_text: Dangerous Diamonds is the third album of the Italian heavy metal band Mastercastle, released by Lion Music on 18 November 2011

paragraph_text: The Falkenfelsen (Falcon Rock) is a granite rock formation in the Northern Black Forest of Germany's Baden-Württemberg state. One side of the formation is a cliff about high. From the Schwarzwaldhochstrasse (Black Forest Highway), two hiking trails lead through the formation and end at the shelter Herta-hut. The platform has a view over the northern Black Forest, with the Hornisgrinde in the south, Bühlerhöhe in the northeast and the valley of the Upper Rhine on the west.

paragraph_text: Master Chief Petty Officer of the Navy Badge of the MCPON Incumbent MCPON Steven S. Giordano since September 2, 2016 Formation April 28, 1967; 50 years ago (1967 - 04 - 28) First holder Delbert Black Website Official website

paragraph_text: Diamond Rugs is an American band project, composed of John McCauley and keyboardist Robbie Crowell of Deer Tick, Ian Saint Pé of The Black Lips, Hardy Morris of Dead Confederate, Steve Berlin of Los Lobos, and Bryan Dufresne of Six Finger Satellite. Their eponymous album, "Diamond Rugs", was released on April 24, 2012, and second album, "Cosmetics", on February 24, 2015.

paragraph_text: A Touch Of Someone Else's Class is the second studio album, under the Alive Records label, by the Nashville, TN rock band, Black Diamond Heavies. Dan Auerbach of The Black Keys produced this album while it was recorded at his Akron Analog Studio. Also, for the song "Bidin’ My Time", Black Diamond Heavies were joined by Black Keys drummer, Patrick Carney.

paragraph_text: On December 8, 1991, at Viskuli near Brest (Belarus), the President of the Russian SFSR and the heads of Byelorussian SSR and Ukrainian SSR signed the "Agreement on the Establishment of the Commonwealth of Independent States" (known in media as Belavezha Accords). The document, consisting of a preamble and fourteen articles, stated that the Soviet Union ceased to exist as a subject of international law and geopolitical reality. However, based on the historical community of peoples, relations between them, given the bilateral treaties, the desire for a democratic rule of law, the intention to develop their relations based on mutual recognition and respect for state sovereignty, the parties agreed to the formation of the Commonwealth of Independent States. On December 12, the agreement was ratified by the Supreme Soviet of the Russian SFSR by an overwhelming majority: 188 votes for, 6 against, 7 abstentions. On the same day, the Supreme Soviet of the Russian SFSR denounced the Treaty on the Creation of the USSR and recalled all Russian deputies from the Supreme Soviet of the Soviet Union. The legality of this act is the subject of discussions because, according to the 1978 Constitution (Basic Law) of the Russian SFSR, the Russian Supreme Soviet had no right to do so. However, by this time the Soviet government had been rendered more or less impotent, and was in no position to object. Although the December 12 vote is sometimes reckoned as the moment that the RSFSR seceded from the collapsing Soviet Union, this is not the case. It appears that the RSFSR took the line that it was not possible to secede from an entity that no longer existed.

paragraph_text: WXOK (1460 AM, "Heaven 1460") is a Black Gospel formatted radio station licensed to Port Allen, Louisiana (where the transmitter is located). The Cumulus Media station broadcasts with a transmitter power of 4,700 watts day and 290 watts night. Its studios are located in downtown Baton Rouge, Louisiana.

paragraph_text: The M19 Tank Transporter (US supply catalog designation G159) was a heavy tank transporter system used in World War II and into the 1950s. It consisted of a 12-ton 6x4 M20 Diamond T Model 980 truck and companion 12-wheel M9 trailer.

paragraph_text: Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London and is usually extended to refer to both the clock and the clock tower. The official name of the tower in which Big Ben is located was originally the Clock Tower, but it was renamed Elizabeth Tower in 2012 to mark the Diamond Jubilee of Elizabeth II.

paragraph_text: Los Ausoles is a group of hot springs located 20 kilometers north of Ahuachapán in El Salvador. The area has been described as "the capital of Central American geothermal." Many of the springs in the area produce heavy steam, and as of 1850, were described as "semi-fluid mass of mud and water in a state of ebullition, continually throwing large heavy bubbles to the surfaces; this heated mass is in some black, in others red, or of the ochry colour."

paragraph_text: Diamond Schmitt Architects is an architectural firm founded in 1975 and located in Toronto, Ontario, Canada. Jack Diamond and Donald Schmitt are the founding principals of the firm.

paragraph_text: VA-216, nicknamed the "Black Diamonds", was an Attack Squadron of the US Navy. It was established on 30 March 1955, and disestablished 15 years later on 1 August 1970.

paragraph_text: WCBY (1240 AM and W264CF 100.7 FM) is a radio station in Cheboygan, Michigan, broadcasting a classic country format delivered by Westwood One "Big Country Gold" is the slogan, which plays off sister country FM WMKC 102.9 known as "Big Country - 102-9". WCBY is owned by Black Diamond Broadcast Holdings, LLC.

paragraph_text: Hartell is an unincorporated community in Alberta, Canada within the Municipal District of Foothills No. 31. It is located at the intersection of Highway 22 and Highway 543, approximately south of Black Diamond, 8 km north of Longview, and 27 km west of High River.

Question: When did the state that has the city where the Black Diamond Heavies were formed as its capital, officially vote to secede?
Answer: June 8, 1861