Historically, the use of two guns at once, one in each hand, is most associated with the American Old West, where revolvers holding only six rounds of ammunition were the highest capacity handguns available and reloading was a slow process.

Historically almost all early computers were accumulator machines ; and many microcontrollers still popular as of 2010 ( such as the 68HC12, the PICmicro, the 8051 and several others ) are basically accumulator machines.

Historically, all living things were grouped as either animals or plants, and botany covered the study of all organisms not considered to be animals.

Historically the languages were spoken over a larger area: West to the mouth of the Vistula river in present-day Poland, at least as far East as the Dniepr river in present-day Belarus, perhaps even to Moscow, perhaps as far south as Kiev.

Historically, allegations of cannibalism were used by the colonial powers to justify the enslavement of what were seen as primitive peoples ; cannibalism has been said to test the bounds of cultural relativism as it challenges anthropologists " to define what is or is not beyond the pale of acceptable human behavior ".

Historically, in Socialist systems collectivist economics were carried to their furthest extreme, with a minimum of private ownership and a maximum of planned economy.

Historically, the baudot and braille keyboards were standardized to some extent, but they are unable to replicate the full character set of a modern keyboard.

Historically, Charlton's most successful period was the 1930s, when the club's highest league finishes were recorded, including runners-up of the First Division in 1937.

Historically, Japanese attempts to normalize their relationship with China were met with Taiwanese accusations of ingratitude.

Historically, cranberry beds were constructed in wetlands.

Historically, RT-11 also served as the inspiration for many microcomputer OS's, as these were generally being written by programmers who cut their teeth on one of the many PDP-11 models.

Historically, lawyers in most European countries were addressed with the title of doctor, and countries outside of Europe have generally followed the practice of the European country which had policy influence through modernization or colonialization.

Historically, division rings were sometimes referred to as fields, while fields were called “ commutative fields ”.

Historically, some encyclopedias were contained in one volume, but some, such as the Encyclopædia Britannica or the world ´ s largest Enciclopedia universal ilustrada europeo-americana, became huge multi-volume works.

Historically, distances were often measured by chains such as Gunter's chain, and angles using graduated circles and, later, the theodolite.

Historically, elliptic functions were discovered as inverse functions of elliptic integrals.

( Historically, division rings were sometimes referred to as fields, while fields were called commutative fields.

Historically, the hadrons ( mesons and baryons such as the proton and neutron ) and even whole atoms were once regarded as elementary particles ( indeed, the word " atom " means " indivisible ").

Historically, this area of Lochaber was strongly Clan Cameron country, and there were a number of mainly Cameron settlements in the area ( such as Blarmacfoldach ).

Historically they were sometimes called Feynman-Dyson diagrams or Dyson graphs, because when they were introduced the path integral was unfamiliar, and Freeman Dyson's derivation from old-fashioned perturbation theory was easier to follow for physicists trained in earlier methods.

Historically the first decade of semiconductor electronics were entirely based on germanium, although its production for such use today is a small fraction ( 2 %) of that of ultra-high purity silicon, which has largely replaced it.

Historically, the largest supporters group was known as " Hillcrest Syndicate ".

Historically, hunting bows usually had draw weights of, which is enough for all but the very largest game and which most reasonably fit adults can manage with practice.

Historically, during the Edo period, the Tokugawa shogunate established bugyō-ruled zones ( 奉行支配地 ) around the nine largest cities in Japan, and 302 township-ruled zones ( 郡代支配地 ) elsewhere.

Historically, this has usually meant that the Prime Minister is the parliamentary leader of the largest political party in the House of Representatives.

Historically a leading seaport of the area, the story of Mystic's nautical connection is told at Mystic Seaport, the nation's largest maritime museum, which has preserved a number of sailing ships ( most notably the whaleship Charles W. Morgan ) and seaport buildings.

Historically, Mount Clemens ' largest industry was the mineral baths that were scattered throughout the city from 1873 until 1974.

Historically they comprised the largest bloc of the original Canadian Conservative party.

Historically Cleveland, as a geographic area within the North Riding of Yorkshire, was located entirely to the south of the River Tees and its largest town was Guisborough, until the rise of Middlesbrough in the 19th century.

Historically within the county of Westmorland, it is situated at the head of Windermere, England's largest lake.

Historically, the description of a bacterium lacking a cell wall was sufficient to classify it to the genus Mycoplasma and as such it is the oldest and largest genus of the class with about half of the class ' species ( 107 validly described ), each usually limited to a specific host and with many hosts harboring more than one species, some pathogenic and some commensal.

Historically Santiago de Cuba has long been the second most important city on the island after Havana, and still remains the second largest.

Historically, this contamination of drinking water has been the largest killer of humans.

Historically within Staffordshire, West Bromwich is the largest town within Sandwell, with a population of 136, 940 at the time of the 2001 census.

Historically, almost all transportation and communication routes between Seoul and the southern Honam ( Jeolla ) and Yeongnam ( Gyeongsang ) regions have gone through the Chungcheong region, and today Daejeon — the region's largest city — is a major railway and freeway junction.

Historically within County Durham, the town has a population of 82, 854, the second largest population centre in the Tyneside conurbation after Newcastle.

Historically within the North Riding of Yorkshire, with a population of around 50, 000 in the town's boundaries, Scarborough is the largest holiday resort on the Yorkshire coast.

Historically the two largest parties have nearly always been Fianna Fáil and Fine Gael, and so the position of Leader of the Opposition has alternated between them.

Historically, Technický skúšobný ústav Piešťany, š. p belong to the oldest and the largest testing bodies in Slovak Republic within testing activity.

Historically, the largest of these BBQs, known as BMEFest, were held in or around Toronto, Ontario and generally on Canada Day with hundreds of participants.

Historically, before the California Fur Rush of the late eighteenth and early nineteenth centuries, the Delta probably held the largest concentration of beaver in North America.

Historically, the largest specified ethnic group inhabiting this area were those identifying as Poles.

Historically, National Routes passed through city centres and formed some of the main thoroughfares within Australia's largest cities.

Historically an agricultural and maritime region, Ostrobothnia supplied the largest number of immigrants from Finland to the US and other countries such as Canada and Australia during the great migration of the late 19th and early 20th centuries.