During the Vietnam War, between 1962 and 1971, the United States military sprayed nearly of material containing chemical herbicides and defoliants mixed with jet fuel in Vietnam, eastern Laos and parts of Cambodia, as part of Operation Ranch Hand.

During the Vietnam War, between 1962 and 1971, the United States military sprayed nearly of chemical herbicides and defoliants in Vietnam, eastern Laos and parts of Cambodia, as part of the aerial defoliation program known as Operation Ranch Hand.

During 1971 and 1972 B evolved into " New B " and then C, with the preprocessor being added in 1972 and early 1973 at the urging of Alan Snyder.

During the Information Age ( circa 1971 – 1991 ), the Knowledge Age ( circa 1991 to 2002 ), and the Intangible Economy ( 2002 – present ) many see the primary factors of production as having become less concrete.

During the show's peak in popularity, Hee Haw often competed in syndication against The Lawrence Welk Show, a long-running ABC program which had also been canceled in 1971, also in an attempt to purge the networks of older demographic-leaning programs.

During the next 25 years, only two jaguars were documented in the United States, both killed: a large male shot in 1971 near the Santa Cruz River by two teenage duck hunters, and another male cornered by hounds in the Dos Cabezas Mountains in 1986.

During the summer of 1971, Colmerauer and Kowalski discovered that the clausal form of logic could be used to represent formal grammars and that resolution theorem provers could be used for parsing.

* 1971 – During a severe thunderstorm over Washington state, a hijacker calling himself Dan Cooper ( AKA D. B. Cooper ) parachutes from a Northwest Orient Airlines plane with $ 200, 000 in ransom money.

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 ).

During the 1970s and the 1980s the track developed some of the best French drivers of the time, and hosted the Formula One French Grand Prix on many occasions, the first of which was the 1971 French Grand Prix.

During this period, in late 1971, she reunited with Schickele to record two tracks, " Rejoice in the Sun " and " Silent Running " for the science-fiction film, Silent Running.

During the Vietnam war, between 1962 and 1971, the United States military sprayed of chemical herbicides and defoliants in Vietnam, eastern Laos and parts of Cambodia, as part of Operation Ranch Hand.

During his career, he pitched for the New York Giants ( 1952 – 1956 ), St. Louis Cardinals ( 1957 ), Cleveland Indians ( 1957 – 1958 ), Baltimore Orioles ( 1958 – 1962 ), Chicago White Sox ( 1963 – 1968 ), California Angels ( 1969 ), Atlanta Braves ( 1969 – 1970 ; 1971 ), Chicago Cubs ( 1970 ), and Los Angeles Dodgers ( 1971 – 1972 ).

During the economic crisis of 1971, Mansfield was not afraid to reach across the aisle to help the economy.

During the installation of a " sound and light " show in 1971, workers discovered the entrance to a tunnel and cave system underneath the Pyramid of the Sun.

During the last season of The Ed Sullivan Show, Sullivan dedicated the entire February 21, 1971 episode to the fifth anniversary of The 5th Dimension.

During the band's mid-period, he wrote many cheerfully eccentric — and often ironic — celebrations of traditional English culture and living: " Village Green " ( 1966 ), " Afternoon Tea " and " Autumn Almanac " ( both 1967 ), " The Last of the Steam-Powered Trains " ( 1968 ), " Victoria " ( 1969 ), " Have a Cuppa Tea " ( 1971 ) and " Cricket " ( 1973 ).

During a 17-year baseball career, he pitched from 1955 to 1971, most notably with the Detroit Tigers and the Philadelphia Phillies.

During this period Norman wrote at least three comedies: X-Mass ( 1971 ), Also Sprach Kazoostra ( 1972 ) and The Gospel According To Moresell, Moresold ( 1973 ).

During the visit, a documentary film about Shankar named Raga was shot by Howard Worth, and released in 1971.

During these times, the village and police department were run from a local motel until 1971 when village trustees bought two portable buildings.

During the local government reform of 1971 Järna, Nås and Äppelbo were amalgamated to form the new Vansbro Municipality.

During the Eleventh Five-Year Plan, the country imported some 42 million tons of grain annually, almost twice as much as during the Tenth Five-Year Plan and three times as much as during the Ninth Five-Year Plan ( 1971 – 75 ).

During the day heat gains from the sun, the occupants of the building, and any electrical lighting and equipment, causes the air temperatures within the space to increase but this heat is absorbed by the exposed concrete slab above, thus limiting the temperature rise within the space to be within acceptable levels for human thermal comfort.

During the reign of King Stephen, William de Beauchamp erected an adulterine castle at Bengeworth, whose occupants vied for control of the town and abbey.

During its 28-year active life, the infrastructure on the Eastern side was expanded to include not only the wall, watchtower and zig-zag barriers, but a multi-lane shed where cars and their occupants were checked.

During this time living conditions were incredibly poor, with Dudley being named ' the most unhealthy place in the country ', which led to the installation of clean water supplies and sewage systems, and later the extensive development of council housing during the early 20th century to relocate the occupants of local slum housing.

During the uprising of March 1991, following the Persian Gulf War, Saddam Hussein's Republican Guards damaged the shrine, where members of the Shia opposition were cornered, in storming the shrine and massacring virtually all its occupants.

During his first performance of Romeo & Juliet, he pulled out his snuff box in the middle of a scene and offered some to the occupants of a box.

During the subsequent wars of Dionysius with the Carthaginians, the Campanian occupants of Entella sided with their former masters, and even continued faithful to their alliance in 396 BCE, when all the cities of Sicily except five went over to that of Dionysius.

During the early hours of May 6, 2001, Twilo was raided and its occupants were evicted.

During World War II, the occupants of Chipperfield Road pulled down an ancient white-washed farm house thinking it would deny German bomber crews a marker to the aerodrome and the adjoining factories.

During questioning by police, he admitted that he shot at the house because its occupants were " black in color " and for that reason he did not " want them in the neighborhood.

During the United Nations coalition offensive in the Gulf War, retreating Iraqi military personnel and others escaping Kuwait were attacked on Highway 80 by American aircraft and ground forces on the night of February 26 – 27, 1991, resulting in the destruction of hundreds of vehicles and the deaths of many of their occupants.

During an attempt to enforce an exclusion zone around Stonehenge, Wiltshire, in 1985, the police entered the field where a group of travellers known as the Peace Convoy were being detained and began smashing the vehicles and beating the occupants.

During World War 2, the factories on the estate played a major role in the war effort and national economy ; many buildings were requisitioned by the Government and their occupants re-housed in makeshift buildings away from the estate.

During the first half of the story, the narrator explains the background of each of the occupants, with particular emphasis on the petty bourgeois Democrat, Cornudet, who is said to have devised all manner of defences for Rouen.

During World War II, the German occupants built many sites in Laksevåg, among them the submarine bunker " Bruno ".

During a routine traffic stop, Dash discovers the occupants of the car have sold Shelton a firearm and offered directions to Nebraska.

During the Thirty Years ' War, in 1634, the town was taken by Imperial troops, defeating the Swedish occupants.

During the dark rainy night Nancy lost control of the vehicle on the Pennsylvania Turnpike, heading for Cleveland, and in the early hours of 26 June all three occupants were killed.