Historically, there has been a lack of information and reliable statistics about Afghanistan's economy.

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 it has had many definitions, but there are three definitions in current use: the imperial gallon (≈ 4. 546 L ) which since metrication is used colloquially in the United Kingdom and semi-officially within Canada, the United States ( liquid ) gallon (≈ 3. 79 L ), and the lesser used US dry gallon (≈ 4. 40 L ).

Historically, there have been numerous episodes of hyperinflation in various countries followed by a return to " hard money ".

Historically, there have been different regulatory approaches within each country in the EU.

Historically, there were also mixed systems:

Historically there were public railway services in the island, provided by two railway companies:

Historically, there have been cases where the term " nybble " was used for a set of bits fewer than 8, but not necessarily 4.

Historically there have been differences among average scores in IQ tests of different population groups ; these have sometimes been called " racial IQ gaps ".

Historically there was a Soviet air base at Aste during the Cold War.

Historically, casks previously used for sherry were used ( as barrels are expensive, and there was a ready market for used sherry butts ).

Historically, British people were thought to be descended mainly from the different ethnic stocks that settled there before the 11th century ; pre-Celtic, Celtic, Anglo-Saxon, Viking and Norman.

Historically, there have been two main types of vermouth, sweet and dry.

Historically there have also been negative consequences, mostly associated with the dams normally required for power production.

Historically, there has been a swing from the sexually liberal end of the Industrial Revolution to the chaste values of the early Victorian period.

Historically they have often taken the form of anagrams, Graecisms, and Latinisations, although there are many other methods of choosing a pseudonym

Historically there have been two conflicting yet widely used definitions for phase noise.

Historically, there had existed several other alternative standardized forms of Belarusian grammar.

Historically, within Mozambique, there was slavery.

Historically, there have been several controversial elections to the Speakership, such as the contest of 1839.

Historically, there was debate about the origin of the supermarket, with King Kullen and Ralph's of California having strong claims.

Historically there have always been parties in States-Provincial ( provincial legislatures ) and Gemeenteraad ( municipal assemblies or city councils ) that were independent from the national party system.

Historically there was also difference between ancestral names or xing ( 姓 ) and clan names or shi ( 氏 ).

Historically, there has been confusion as to the actual tariff level imposed by the Smoot – Hawley Tariff.

Historically, there have been several accounts of applications for, and experimentation with, forensic entomology.

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 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.