paragraph_text: The Miller Bluffs () are a line of steep, east-facing bluffs about long which extend west-northwest from Foros Spur at the mouth of Newcomer Glacier, along the northeast side of Gromshin Heights in northern Sentinel Range, Ellsworth Mountains in Antarctica. The north end of the feature was photographed by Lincoln Ellsworth on his trans-Antarctic flight of November 23, 1935, and the bluffs were mapped by the United States Geological Survey in 1961 from air photos obtained by U.S. Navy Squadron VX-6 in 1959. The feature was named by the Advisory Committee on Antarctic Names for the Hon. George P. Miller, former chairman of the House Science and Astronautics Committee, whose great interest in Antarctic activities was of assistance in assuring successful completion of U.S. research of that continent, 1958–72.

paragraph_text: Maria River, a watercourse of the Hastings River catchment, is located in the Mid North Coast region of New South Wales, Australia.

paragraph_text: The Paleozoic spanned from roughly 541 to 252 million years ago (Ma) and is subdivided into six geologic periods; from oldest to youngest they are the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Geologically, the Paleozoic starts shortly after the breakup of a supercontinent called Pannotia and at the end of a global ice age. Throughout the early Paleozoic, the Earth's landmass was broken up into a substantial number of relatively small continents. Toward the end of the era the continents gathered together into a supercontinent called Pangaea, which included most of the Earth's land area.

paragraph_text: Barcoongere River, a watercourse of the Wooli Wooli River catchment, is located in the Northern Rivers region of New South Wales, Australia.

paragraph_text: In October 2010, the open-access scientific journal PLoS Pathogens published a paper by a multinational team who undertook a new investigation into the role of Yersinia pestis in the Black Death following the disputed identification by Drancourt and Raoult in 1998. They assessed the presence of DNA/RNA with Polymerase Chain Reaction (PCR) techniques for Y. pestis from the tooth sockets in human skeletons from mass graves in northern, central and southern Europe that were associated archaeologically with the Black Death and subsequent resurgences. The authors concluded that this new research, together with prior analyses from the south of France and Germany, ". . . ends the debate about the etiology of the Black Death, and unambiguously demonstrates that Y. pestis was the causative agent of the epidemic plague that devastated Europe during the Middle Ages".

paragraph_text: The river has its sources in the eastern part of Belgorod Oblast, on the southeastern slopes of the Central Russian Upland. It flows in a northeasterly direction, and joins the Don some west of the town of Liski in Voronezh Oblast.

paragraph_text: Mehi River, a watercourse that is part of the Barwon catchment within the Murray–Darling basin, is located in the Orana district of New South Wales, Australia.

paragraph_text: The Battle of the Tanais River in 373 AD between the Huns and the Alans, was fought on the traditional border between Asia and Europe. The Huns were victorious.

paragraph_text: Paddys River, a watercourse of the Murray catchment within the Murray–Darling basin, is located in the Australian Alpine region of New South Wales, Australia.

paragraph_text: Vorkreist is a French death/black metal band, based in Paris, who share members with the black metal bands Antaeus and Hell Militia. "Vorkreist" is a barbarism created by the band that supposedly means "Antichrist".

paragraph_text: Gibbs Point, a rock point on the Antarctic Peninsula, the most northern area of the continent of Antarctica, was named for African American Antarctic explorer, George W. Gibbs, Jr. on September 2, 2009. On that date, the Advisory Committee on Antarctic Names (U.S. Board on Geographic Names) confirmed the place name in Antarctica for Gibbs as the first black explorer to set foot on the continent. Gibbs Point is a rock point forming the northwest entrance to Gaul Cove, on the northeast of Horseshoe Island, Marguerite Bay, Antarctic Peninsula.

paragraph_text: Cordero Channel is a strait in British Columbia, Canada, located between the mainland and Vancouver Island, among the Discovery Islands north of the Strait of Georgia. Cordero Channel runs north of Sonora Island, East Thurlow Island, and part of West Thurlow Island. Its eastern end connects to the mouth of Bute Inlet and to Calm Channel, at Stuart Island. Its west end is marked by the mouth of Loughborough Inlet, beyond which the channel is called Chancellor Channel, which continues west to Johnstone Strait.

paragraph_text: Mummel River, a watercourse of the Manning River catchment, is located in the Northern Tablelands and Mid North Coast districts of New South Wales, Australia.

paragraph_text: Keppel Bay is a broad bay in Central Queensland, Australia at the mouth of the Fitzroy River. Cape Keppel is at the Eastern end of the bay.

paragraph_text: The Black Death is thought to have originated in the arid plains of Central Asia, where it then travelled along the Silk Road, reaching Crimea by 1343. From there, it was most likely carried by Oriental rat fleas living on the black rats that were regular passengers on merchant ships. Spreading throughout the Mediterranean and Europe, the Black Death is estimated to have killed 30 -- 60% of Europe's total population. In total, the plague may have reduced the world population from an estimated 450 million down to 350 -- 375 million in the 14th century. The world population as a whole did not recover to pre-plague levels until the 17th century. The plague recurred occasionally in Europe until the 19th century.

paragraph_text: The Ordovician Period started at a major extinction event called the Cambrian-Ordovician extinction events some time about 485.4 ± 1.9 Ma. During the Ordovician the southern continents were collected into a single continent called Gondwana. Gondwana started the period in the equatorial latitudes and, as the period progressed, drifted toward the South Pole. Early in the Ordovician the continents Laurentia, Siberia and Baltica were still independent continents (since the break-up of the supercontinent Pannotia earlier), but Baltica began to move toward Laurentia later in the period, causing the Iapetus Ocean to shrink between them. Also, Avalonia broke free from Gondwana and began to head north toward Laurentia. The Rheic Ocean was formed as a result of this. By the end of the period, Gondwana had neared or approached the pole and was largely glaciated.

paragraph_text: The results of the Haensch study have since been confirmed and amended. Based on genetic evidence derived from Black Death victims in the East Smithfield burial site in England, Schuenemann et al. concluded in 2011 "that the Black Death in medieval Europe was caused by a variant of Y. pestis that may no longer exist." A study published in Nature in October 2011 sequenced the genome of Y. pestis from plague victims and indicated that the strain that caused the Black Death is ancestral to most modern strains of the disease.

paragraph_text: The Black Death was a pneumonic plague pandemic, which reached England in June 1348. It was the first and most severe manifestation of the Second Pandemic, caused by Yersinia pestis bacteria. The term ``Black Death ''was not used until the late 17th century.

paragraph_text: Gasquet (1908) claimed that the Latin name atra mors (Black Death) for the 14th-century epidemic first appeared in modern times in 1631 in a book on Danish history by J.I. Pontanus: "Vulgo & ab effectu atram mortem vocatibant. ("Commonly and from its effects, they called it the black death"). The name spread through Scandinavia and then Germany, gradually becoming attached to the mid 14th-century epidemic as a proper name. In England, it was not until 1823 that the medieval epidemic was first called the Black Death.

paragraph_text: Wallingat River, a watercourse of the Mid-Coast Council system, is located in the Mid North Coast district of New South Wales, Australia.

Question: When did the Black Death end on the continent where the watercourse that is the mouth of the Tikhaya Sosna is found?
Answer: 19th century