Both the F-14 Tomcat and AIM-54 Phoenix missile continue in the service of the Islamic Republic of Iran Air Force, although the operational abilities of these aircraft and the missiles are questionable, since the US refused to supply spare parts and maintenance after the 1979 revolution ; except for a brief period during the Iran-Contra Affair.

Nicaragua's legal system also is a mixture of the English Common Law and the Civil Law through the influence of British administration of the Eastern half of the country from the mid-17th century until about 1905, the William Walker period from about 1855 through 1857, USA interventions / occupations during the period from 1909 to 1933, the influence of USA institutions during the Somoza family administrations ( 1933 through 1979 ) and the considerable importation between 1979 and the present of USA culture and institutions.

During this period, Parton's visibility continued to increase, with television appearances in 1977, 1978 and 1979.

The Republic was controlled by Saddam Hussein from 1979 to 2003, into which period falls into the war with Iran and the Gulf War.

Some major works composed during this period include Wavemaker ( 1977 ), Phrygian Gates for solo piano ( 1977 ), Shaker Loops ( 1978 ), Common Tones in Simple Time ( 1979 ), Harmonium ( 1980 – 81 ), Grand Pianola Music ( 1982 ), Light Over Water ( 1983 ), Harmonielehre ( 1984 – 85 ), The Chairman Dances ( 1985 ), Short Ride in a Fast Machine ( 1986 ), and Nixon in China ( 1985 – 87 ).

The history of the communist movement in Cambodia can be divided into six phases: the emergence of the Indochinese Communist Party ( ICP ), whose members were almost exclusively Vietnamese, before World War II ; the 10-year struggle for independence from the French, when a separate Cambodian communist party, the Kampuchean ( or Khmer ) People's Revolutionary Party ( KPRP ), was established under Vietnamese auspices ; the period following the Second Party Congress of the KPRP in 1960, when Saloth Sar ( Pol Pot after 1976 ) and other future Khmer Rouge leaders gained control of its apparatus ; the revolutionary struggle from the initiation of the Khmer Rouge insurgency in 1967 – 68 to the fall of the Lon Nol government in April 1975 ; the Democratic Kampuchea regime, from April 1975 to January 1979 ; and the period following the Third Party Congress of the KPRP in January 1979, when Hanoi effectively assumed control over Cambodia's government and communist party.

After a period of hostilities, Mauritania withdrew from the territory in 1979 and signed a peace treaty with the Polisario relinquishing all claims to the territory.

A long period of transition occurred between 1979 and 1994, specifically in the capital, Koror, on the topic of relations with the United States.

During this period, other related organizations were also formed, including the Academy of Parapsychology and Medicine ( 1970 ), the Institute of Parascience ( 1971 ), the Academy of Religion and Psychical Research, the Institute of Noetic Sciences ( 1973 ), the International Kirlian Research Association ( 1975 ), and the Princeton Engineering Anomalies Research Laboratory ( 1979 ).

The number of sunspots correlates with the intensity of solar radiation over the period since 1979, when satellite measurements of absolute radiative flux became available.

During this period Silesia became one of the world's largest producers of coal, with a record tonnage in 1979.

* July 11 – Pluto ( not known at this time ) enters a fourteen year period inside the orbit of Neptune, which will not recur until 1979.

Starting around 1979, gay men's choruses were founded within a period of months in many major U. S. cities such as New York, Los Angeles, Seattle and Dallas.

Old school hip hop ( also spelled " old skool ") describes the earliest commercially recorded hip hop music ( approximately from 1979 – 1984 ), and the music in the period preceding it from which it was directly descended ( see Roots of hip hop ).

The older, traditional industries of Wallonia, particularly steel industry, began to lose their competitive edge during this period, but the general growth of world prosperity masked this deterioration until the 1973 and 1979 oil price shocks and resultant shifts in international demand sent the economy into a period of prolonged recession.

Conversely, in the 1970's parts of Baffin Island failed to have the usual ice-free period in the summer, according to the book Crown of The World by Cora Cheney, 1979 Dodd, Merad, and Company New York.

During the 1977 – 1979 period, Uganda was a member of the United Nations Commission on Human Rights.

During this maladious period, the single " Good Timin '" ( a collaboration between Brian and Carl Wilson dating from the 1974 Caribou sessions ) peaked at # 40 in June 1979.

Productivity is something of an amorphous concept and the amount of productivity increase in a given time period is not even well known to the industry, much less to the union or to the public.

The long retention period and the complete mixing concept prevented rapid changes in either the mixed liquor or in the effluent.

A related concept is that of a perfect number, which is a number which equals the sum of its own proper divisors, in other words a number which forms an aliquot sequence of period 1.

The concept of the overlordship of the whole of Britain was at least recognised in the period, whatever was meant by the term.

During the interwar period the Luftwaffe leadership rejected the concept of terror bombing, and confined the air arms use to battlefield support of interdiction operations.

During the Cold War period both the United States and the Soviet Union experimented further with the concept, deploying early cruise missiles from land, submarines and aircraft.

A new concept, popularized by John Fairbank was the notion of " change within tradition " which argued that although China did change in the pre-modern period but that this change existed within certain cultural traditions.

In 2004 the British hip hop group The Streets released A Grand Don't Come for Free, a concept album charting a period of the protagonists life in which he meets a girl, starts a relationship with her and then breaks up with her after finding out she has been cheating on him.

The request-and-grant process uses a lease concept with a controllable time period, allowing the DHCP server to reclaim ( and then reallocate ) IP addresses that are not renewed.

Edward B. Tylor and Lewis H Morgan brought the term " evolution " to anthropology though they tended toward the older pre-Spencerian definition helping to form the concept of unilineal evolution used during the later part of what Trigger calls the Antiquarianism-Imperial Synthesis period ( c1770-c1900 ).

It provided a direct connection between the streamlined style which was popular in America between 1928 and 1938, and the concept of steady-flow which appeared in street and highway design in the same period.

Hayek's analysis was based on Böhm-Bawerk's concept of the " average period of production " and on the effects that monetary policy could have upon it.

The modern concept of human rights developed during the early Modern period, alongside the European secularization of Judeo-Christian ethics.

The decimal numeral system, including the concept of zero, was invented in India during this period.

The concept of a Finnish " country " in the modern sense developed only slowly during the period of the 15th – 18th centuries.

A number of publications over a period of thirty years would attempt to elucidate this concept.

It had been during this period that Mao had first learned of the imported western concept of socialism from a newspaper article, and intrigued, he read several pamphlets by Jiang Kanghu ( 1883 – 1954 ), a student who had founded the Chinese Socialist Party in November 1911.

It is synonymous with the concept of liberation ( moksha ) which refers to release from a state of suffering after an often lengthy period of committed spiritual practice.

Although other texts from the Second Temple period are not considered authoritative in Judaism, they do show reference to the concept of Noahic laws before the Talmud.

The developments of Late Antiquity in the religious thought in the far-flung Roman Empire needs to be addressed separately, as this is the context in which Early Christianity itself developed as one of several monotheistic cults, and it was in this period that the concept of " pagan " developed in the first place.

Thus the concept of the " Romantic period " may be meaningless outside of Europe and European-influenced cultures.

Key to deMause's thought is the concept of psychoclass, which emerges out of a particular style of childrearing, and child abuse, at a particular period in a society's development.

Inc. v. Northwestern Bell Telephone Co .) Continuity is both a closed and open ended concept, referring to either a closed period of conduct, or to past conduct that by its nature projects into the future with a threat of repetition.

The concept of the constellation was known to exist during the Babylonian period.

The publication of the 1996 anthology Rethinking linguistic relativity edited by sociolinguist John J. Gumperz and psycholinguist Stephen C. Levinson marked the entrance to a new period of linguistic relativity studies and a new way of defining the concept that focused on cognitive as well as social aspects of linguistic relativity.