Although it wasn't realized at the time, the quasi-biennial oscillation ( QBO ) was observed during the 1883 eruption of Krakatoa, when the ash from the volcano was transported around the globe from east to west by stratospheric winds in about two weeks.

Although earlier published radiocarbon evidence suggested a two-sigma age range of AD 408 – 536, which is consistent with the global climate downturn, the connection between AD 536 and Ilopango was not explicitly made until research on Central American Pacific margin marine sediment cores by Steffen Kutterolf and colleagues showed that the phreatoplinian TBJ eruption was much larger than previously thought.

Although small eruptions are more likely, the two million-year eruptive history of the Ruiz – Tolima massif includes numerous large eruptions, indicating that the threat of a large eruption cannot be ignored.

Although he initially hoped for an alliance with the English to secure his claims on land possessed by the O ' Donnell and Sorley Boy MacDonnell families against the encroachment of the O ' Neill, English unwillingness to work with him ultimately led him to orchestrate a marriage alliance among the three feuding clans of Ulster, which would ultimately have major effects on Irish history with the eruption of the Hugh O ' Neill rebellion in the 1590s.

Although volcanic eruptions are notoriously chaotic in their frequency, some scientists warn that a large eruption is " overdue ".

Although not threatened by volcanoes as Goma is, Bukavu is equally in danger from a potential limnic eruption from Lake Kivu, in which vast quantities of dissolved carbon dioxide and methane could explode from the lake and threaten the lives of the 2 million people who live near the lake.

Although the official contemporary death toll was 153, exhaustive research by physicist Ron Keam only identified 108 people killed by the eruption ( including seven Europeans ).

Although its last eruption was more than a century ago, geothermal activity in the form of steam vents and hot springs remains high on and around the volcano.

Although the story changed before the game's release, the sequel still mentions an eruption of the Char's volcano and speaks about destruction of " the witches in their wretched lair " while telling the game's backstory ; similarly, the official website includes the phrase the " Witches of Char " in its description of the game.

Although no centers younger than late Miocene are known in Canada, the eruption of rhyolite pumice, White River Ash, from Mount Churchill near the head of Klutlan Glacier blanketed large areas of northwestern Canada with tephra some 2, 000 years ago.

Although radial fissure eruption and lava flow was characteristic of this particular eruption, the VEI was only recorded as a 1, and no lava or tephra volumes were recorded.

Although a small-scale eruption did occur in A. D. 1999, another larger-scale eruption is expected to occur in the immediate future.

Although the central volcano has not been active within the past two centuries, it has seen activity related to the eruption of Capelinhos ( 1957 – 58 ).

Although one person nearly fell into the Capelinhos crater, there were no deaths from the eruption ; generally, ash deposits and some projectiles caused the destruction of homes and the blanketing of agricultural lands in the parishes of Capelo and Praia do Norte.

Although there exist no volcanic structures, the region is vulnerable to the products from any central eruption on the island.

Although the College finally celebrated its first conferment of a Bachelor ’ s Degree in May 1950, it was again indefinitely closed due to the eruption of the June 25 Korean War.

Although no visual confirmation was possible when the eruption began because the volcano's peak was shrouded by clouds, Indonesian government volcanologists said seismic readings showed an eruption was under way.

Although the lake emptied during the 2000 eruption, it has returned to its previous levels.

Although he was born in Texas, Gohlke ’ s geographical range includes central France, the American South and Midwest, New England and Mount St. Helens after a volcanic eruption.

Although most are located in the depths of seas and oceans, some also exist in shallow water, which can spew material into the air during an eruption.

Although Lake Monoun is near the center of a volcanic field that includes at least 34 recent craters, the subsequent investigation found that the event was not caused by an eruption or sudden ejection of volcanic gas from the lake.

Although Johnson would attest in a 1984 radio interview that the " two tribes " of the song potentially represented any pair of warring adversaries ( giving the examples of " cowboys and Indians or Captain Kirk and Klingons "), the song does contain the line " On the air America / I modelled shirts by Van Heusen ", a clear reference to then US President Ronald Reagan, who had advertised for Phillips Van Heusen in 1953 ( briefly reviving the association in the early 1980s ), and whose first film had been titled Love Is On The Air.

Although Fellini adapted key events from his childhood and adolescence in films such as I Vitelloni ( 1953 ), 8½ ( 1963 ), and Amarcord ( 1973 ), he insisted that such autobiographical memories were inventions: " It is not memory that dominates my films.

Although banned in 1953, France was obliged to grant Morocco independence on March 2, 1956, leaving behind them a legacy of urbanisation and the beginnings of an industrial economy.

Although the Soviet Union and the United States never directly entered military conflict with each other, several proxy wars, such as the Korean War ( 1950 – 1953 ) and the Vietnam War ( 1957 – 1975 ), were waged as the United States implemented its worldwide " containment " policy against communism.

Although quantum evolution may happen at any taxonomic level ( 1953, 389 ), it plays a much larger role in " the origin taxonomic units of relatively high rank, such as families, orders, and classes.

Although Highway 4 was commissioned in 1953 and is technically not part of the Trans-Canada Highway system, there is also a sign marking the Pacific terminus of the Trans-Canada Highway at Tofino, British Columbia, where Highway 4 terminates in the west, but it was most likely erected before 1953.

Although the film was made between July and October 1951, it was not released until 1953 due to director Stevens ' extensive editing.

Although Route S-28 was used for the alignment for nearly three decades, the second state highway renumbering in 1953 eliminated the designation, and Route 18 was designated in place.

This was followed in the 1950s by the development of area checklists, led by Mary W. Parke with her 1931 Manx Algae and followed in 1953 by her " A preliminary check-list of British marine algae " Although Lily Newton's 1931 Handbook provided the first identification key for the algae of the British Isles, it wasn't until the 1960s that the development of such keys became routine.

Although " born in America's defense ," Henderson's future after the war was uncertain until April 16, 1953, when city incorporation papers were signed.

Although research has indicated that group members ’ dependence on group leaders can lead to reduced self-reliance and overall group strength, most people actually prefer to be led than to be without a leader ( Berkowitz, 1953 ).

Although the RS & P became one of the most profitable short lines in the nation during its early years, passenger service was discontinued in 1953, freight service was discontinued in the late 1970s, and the tracks were removed in 1984.

Although many of San Ygnacio's neighboring municipalities were evacuated and consolidated in the deliberate 1953 flooding of the region which created Falcon Lake and " New " Zapata, San Ygnacio's residents petitioned for the right to remain on their land, which was high enough to escape substantial damage.

Although abandoned by the PLA by 1953, the Chinese army re-adopted this tactic during the Sino-Vietnamese War due to the stagnation of the Chinese military modernization programs during the Cultural Revolution.

Although introduced in the U. S. in 1953, only a few years after black-and-white televisions had been standardized there, high prices and lack of broadcast material greatly slowed its acceptance in the marketplace.

Although the Act provided procedures for Authorisations and Warrants, this essentially enshrined mechanisms that had been in place at least since 1953 ( for Authorisations ) and 1985 ( under the Interception of Communications Act, for warrants ).

Although guerrilla warfare ended at the time of 1953, Lithuanian opposition to Soviet rule did not.

Although produced at The Arts Theatre in London in 1961 ( and elsewhere later on ), his play was written in 1953.

Although he was critical of Franklin D. Roosevelt's New Deal, Herter distinguished himself during 1943 – 1953 primarily for his stand on foreign affairs, especially owing to the so-called Herter Committee in 1947 whose report initiated proposals that led to Harry Truman's Marshall Plan.

Although primarily a biblical archaeologist, Albright was a polymath who made contributions in almost every field of Near Eastern studies: an example of his range is a BASOR 130 ( 1953 ) paper titled " New Light from Egypt on the Chronology and History of Israel and Judah ," in which he established that Shoshenq I — the Biblical Shishaq — came to power somewhere between 945 and 940 BC.

Although the route remained intact for twenty-six years, the 1953 state highway renumbering occurred on January 1, and Route S-24 was re-designated as Route 82 and Route 439, while Route 24 through Springifeld remained the same.

Although the Egyptian monarchy was abolished in 1953, the title continues to be used by Muhammad Ali, Prince of Said and Hereditary Chief, Sheikh Beja Khawr al ` allaqi, Prince of Sa ' id.

Although named after Bloom, the publication followed a series of conferences from 1949 to 1953, which were designed to improve communication between educators on the design of curricula and examinations.

Although Korean War hostilities ended in July 1953, the Cold War with the Soviet Union persisted.