* Gerhard Doerfer ( 1963, 1966, 1967, 1968, 1972, 1973, 1974, 1975, 1981, 1985, 1988, 1993 ).

His Elo rating shot from 2540 in 1971 to 2660 in 1973, when he shared second in the USSR Chess Championship, and finished equal first with Viktor Korchnoi in the Leningrad Interzonal Tournament, with the latter success qualifying him for the 1974 Candidates Matches, which would determine the challenger of the reigning world champion, Bobby Fischer.

In 1973 and 1974 the Soviet media campaign targeted both Andrei Sakharov and Aleksandr Solzhenitsyn.

In 1973 Andrei Sakharov was nominated for the Nobel Peace Prize and in 1974 was awarded the Prix mondial Cino Del Duca.

A Little Night Music opened on Broadway at the Shubert Theatre on February 25, 1973, and closed on August 3, 1974 after 601 performances and 12 previews.

The Orioles experienced their greatest success from 1964 – 1983, as well as 1996-1997, winning eight Division Championships ( 1969 – 1971, 1973 – 1974, 1979, 1983, 1997 ), six pennants ( 1966, 1969 – 1971, 1979, 1983 ), three World Series Championships ( 1966, 1970, 1983 ), one wild card berth ( 1996 ), and five Most Valuable Player awards ( 3B Brooks Robinson 1964, OF Frank Robinson 1966, 1B Boog Powell 1970 and SS Cal Ripken Jr. 1983 & 1991 ).

The Orioles would miss the playoffs in 1972, but rebounded to win the division in 1973 and 1974.

He argues that the power ballad broke into the mainstream of American consciousness in 1976 as FM radio gave a new lease of life to earlier songs like Led Zeppelin's " Stairway to Heaven " ( 1971 ), Aerosmith's " Dream On " ( 1973 ), and Lynyrd Skynyrd's " Free Bird " ( 1974 ).

1973 ); Charles Berlitz ( The Bermuda Triangle, 1974 ); Richard Winer ( The Devil's Triangle, 1974 ), and many others, all keeping to some of the same supernatural elements outlined by Eckert.

The roles of Bet Lynch, Ivy Tilsley ( Lynne Perrie ), Deirdre Hunt ( Anne Kirkbride ), Rita Littlewood ( Barbara Knox ) and Mavis Riley ( Thelma Barlow ) were built up between 1972 and 1973 with characters such as Gail Potter ( Helen Worth ), Blanche Hunt ( Patricia Cutts and Maggie Jones ) and Vera Duckworth ( Elizabeth Dawn ) first appearing in 1974.

These were: Lola Versus Powerman and the Moneygoround, Part One ( 1970 ), Muswell Hillbillies ( 1971 ), Preservation: Act 1 ( 1973 ), Preservation: Act 2 ( 1974 ), Soap Opera ( 1975 ) and Schoolboys in Disgrace ( 1976 ).

The first Soviet-made pocket-sized calculator, the " Elektronika B3-04 " was developed by the end of 1973 and sold at the beginning of 1974.

Claims have been made for Manu Dibango's " Soul Makossa " ( 1972 ), Jerry Butler's " One Night Affair " ( 1972 ), the Hues Corporation's " Rock the Boat " ( 1973 ), George McCrae's " Rock Your Baby " ( 1974 ), and " Kung Fu Fighting " ( 1974 ) by Biddu and Carl Douglas.

This time, IBM submitted a candidate which was deemed acceptable — a cipher developed during the period 1973 – 1974 based on an earlier algorithm, Horst Feistel's Lucifer cipher.

After a vote by the APA trustees in 1973, and confirmed by the wider APA membership in 1974, the diagnosis was replaced with the category of " sexual orientation disturbance ".

Released in late 1973, the song topped the singles chart in February 1974, and reached the lower regions of Billboard's Hot 100 ( it eventually also charted in the UK, reaching No. 7 in 1976, representing Parton's first UK success ).

Ethernet was developed at Xerox PARC between 1973 and 1974.

Other legislation included National Environmental Policy Act ( NEPA ), signed into law in 1970, which established a United States Environmental Protection Agency and a Council on Environmental Quality ; the Marine Protection, Research, and Sanctuaries Act of 1972 ; the Endangered Species Act of 1973, the Safe Drinking Water Act ( 1974 ), the Resource Conservation and Recovery Act ( 1976 ), the Water Pollution Control Act Amendments of 1977, which became known as the Clean Water Act, and the Comprehensive Environmental Response, Compensation, and Liability Act, commonly known as the Superfund Act ( 1980 ).

Don Daglow wrote an enhanced version of the program called Ecala on a PDP-10 mainframe computer at Pomona College in 1973 before writing what was possibly the second or third computer role-playing game, Dungeon ( 1975 ) ( The first was probably " dnd ", written on and for the PLATO system in 1974, and the second may have been Moria, written in 1975 ).

On 9 August 2010, Eagle Rock Entertainment released Live – The Early Years in the UK as a DVD compilation that includes Fusion – Live in London ( 1976 ) along with never before released live performances at Brunel University ( 1973 ) and on a German TV show Rockpalast ( 1974 ).

The first full-length feature produced under the BFI's new scheme was Kevin Brownlow and Andrew Mollo's Winstanley ( 1975 ), while others included Moon Over the Alley ( 1975 ), Requiem for a Village ( 1975 ), the openly avant-garde Central Bazaar ( 1973 ), Pressure ( 1975 ) and A Private Enterprise ( 1974 ) -- the last two being, respectively, the first British Black and Asian features.

Works such as Marjorie Rosen ’ s Popcorn Venus: Women, Movies, and the American Dream ( 1973 ) and Molly Haskell ’ s From Reverence to Rape: The Treatment of Women in Movies ( 1974 ) analyze how the women portrayed in film related to the broader historical context, the stereotypes depicted, the extent to which the women were shown as active or passive, and the amount of screen time given to women.

The FIH introduced competitive tournaments in 1974, forcing the acceptance of the principle of competitive field hockey by the IFWHA in 1973.

Oil production surpassed the exportation of coffee as Angola's largest export in 1973.

On 17 February 1972, when Beetle No. 15, 007, 034 was produced, Beetle production surpassed that of the previous record holder, the Ford Model T. By 1973, total production was over 16 million, and by 23 June 1992, over 21 million had been produced.

In 1973, enrollment surpassed 10, 000 students for the first time.

( Nolan Ryan's 1973 total of 383 strikeouts surpassed both Feller and Waddell's mark.

( This stood for six years until Dave Roberts surpassed it with seventeen in 1973 ).

This spaceflight of record-breaking duration was not surpassed by humans until Skylab 2 in June 1973 and still stands as the longest space flight by dogs.

Tallon's 92 remained the highest score by an Australian wicketkeeper until Rod Marsh equalled it with 92 not out in the 1970-71 Ashes series and surpassed it with 132 against New Zealand in 1973 – 74.

Sales in 1973 surpassed $ 50 million for the first time, and Therm-A-Bind, a revolutionary, heat-activated binding system, was introduced.

* 1973 – Martin Cooper of Motorola made the first handheld mobile phone call to Joel S. Engel of Bell Labs, though it took ten years for the DynaTAC 8000X to become the first such phone to be commercially released.

He left Manchester United to become manager of Preston North End for the 1973 – 74 season.

The effort was sufficiently complete that during the summer of 1973 the Unix kernel for the PDP-11 was rewritten in C. During the 1972 – 73 period there was a need to port to Honeywell 635 and IBM 360 / 370 machines, so Mike Lesk wrote the " portable I / O package " which would become the C " standard I / O " routines.

Agreement was reached with France in 1973 for Comoros to become independent in 1978.

ELO had become successful in the United States at this point and the group was a star attraction on the stadium and arena circuit, as well as regularly appearing on The Midnight Special ( 1973, 1975, 1976 & 1977 ) more than any other band in that show's history with four appearances.

It was discontinued in 1973 – 1974, as Fatah's political line shifted again, and the Black September operations and the strategy behind them were seen as having become a political liability, rather than an asset.

These policies, coupled with economic pressures stemming from the 1973 oil crisis, resulted in the rapid collapse of Madagascar's economy and a sharp decline in living standards, and the country had become completely bankrupt by 1979.

By 1973 Number 96 had become Australia's highest-rating show.

The filmmaker Brian De Palma has incorporated split screens into many of his films, most notably in Sisters ( 1973 ) and they have since become synonymous with his filmmaking style ( Specifically 1981's Blow Out and 1998's Snake Eyes ).

By June 1973, an apparatus that would become the FBI's Joint Terrorism Task Force ( JTTF ) was issuing near daily briefings on Shakur's status and the allegations against her.

* Leonardo Vitale ( 1941 – 1984 ) was one of the first to become a pentito in 1973, although originally his confessions were not taken seriously.

Salvador Allende Gossens (; 26 June 1908 – 11 September 1973 ) was a Chilean physician and politician, known as the first Marxist to become president of a Latin American country through open elections.

It is held at the Montreux Music & Convention Centre, built in 1973 and has become a global phenomenon.

Many of SOM's post-war designs have become icons of American modern architecture, including the Manhattan House ( 1950 ), designated as a New York City landmark in 2007 by the New York City Landmarks Preservation Commission ; and the Lever House ( 1952 ), also in New York City ; as well as the Air Force Academy Chapel ( 1958 ) in Colorado Springs, Colorado ; and the John Hancock Center ( 1969 ) and Sears Tower ( 1973 ), both in Chicago.

Cosgrave's son, Liam, succeeded his father as a TD in 1944 and went on to become leader of Fine Gael from 1965 to 1977 and Taoiseach from 1973 to 1977.

Several critics have compared the film favorably to Bergman's 1973 film, Scenes from a Marriage, including Joseph McBride in Variety, who found it Allen's " most three-dimensional film to date " with an ambition equal to Bergman's best even as the co-stars become the " contemporary equivalent of ...

He left Northern Ireland in 1973 to become Secretary of State for Employment shortly before the Sunningdale Agreement was reached, to confront the National Union of Mineworkers over pay demands.

By 1973, Harvey Milk, who would become the most famous resident of the neighborhood, opened a camera store, Castro Camera, and began political involvement as a gay activist, further contributing to the notion of the Castro as a gay destination.

The last professional basketball team in Dallas had been the Dallas Chaparrals of the American Basketball Association, which moved to San Antonio in 1973 to become the San Antonio Spurs.

The most famous horse from Canada is generally considered to be Northern Dancer, who after winning the Kentucky Derby, Preakness and Queen's Plate in 1964 went on to become the most successful Thoroughbred sire of the 20th century ; his two-minute-flat Derby was the fastest on record until Secretariat in 1973.

After the 1973 military coup led by Augusto Pinochet, Varela and his family spent 7 years in exile in the USA before returning to Chile to become a Professor of biology.

In the introduction to later editions of Hapgood's 1973 book, Mystery in Acambaro, David Hatcher Childress writes that Hapgood was convinced that they were authentic ancient artifacts which indicated that men and dinosaurs had cohabited together in the recent past, and that dinosaurs had not become extinct many millions of years ago.

From 1973 to 1977, Duisenberg was Minister of Finance under Prime Minister Joop den Uyl, Shortly afterwards, he gave up his seat in the Dutch parliament to become vice president of Rabobank, a Dutch bank.

Around six years after its birth, an international YMCA conference in Paris decided that the objective of the organisation should become " Christian discipleship developed through a programme of religious, educational, social and physical activities " ( Binfield 1973: 265 ).

Both went on to become Playmate of the Year, respectively 1972 and 1973.