Only seven of his estimated seventy to ninety plays have survived into modern times, and there is a longstanding debate about his authorship of one of these plays, Prometheus Bound.

Only one of these pictures was a musical, Invitation to the Dance, a pet project of Kelly's to bring modern ballet to mainstream film audiences.

Only modern Dutch preserves this Germanic form, however.

Only the Lesser Poland Chronicle gives the date of his birth as somewhere between the years 920 – 931 ( depending on the version of the manuscript ), however, modern researchers don't recognize the Chronicle as a reliable source.

Only a tiny minority of modern republics do not have a single head of state: examples are:

Only gradually did the modern foot-specific shoe become standard.

Only Khartoum International Airport was equipped with modern operational facilities, but by the early 1990s, Khartoum and seven other airports had paved runways.

Only 53 teams in the modern era have posted sub -. 500 records in April and survived to make the postseason.

Only very few modern programs still honor this behavior, such as Lotus Notes, and Microsoft Excel.

Only with the modern evolutionary synthesis, was it established that variation needed to be heritable to act as the raw material for selection.

Only non-canonical sources have provided any Vulcans with family names, which are usually spoken of as defying attempts at both human pronunciation, especially with English-language phonemes, and human typesetting, especially with the characters of the modern Latin alphabet used for the English language.

Only with the advent of modern technology and industrialization, it slowly rose into prominence.

Only two lineages survived this period's massive extinction and into the Triassic: the genus Miocidaris, which gave rise to modern cidaroida ( pencil urchins ), and the ancestor that gave rise to the euechinoids.

Only in 1995 were the passages in the Sanskrit texts proven to be interpolations by a modern ( late 19th century ) forger.

Only a small marble fragment, a carved rose excavated by William Stukeley, survives which is currently preserved in Stamford Museum. See below for the modern monument erected by Smith of Derby Group.

Only small parts of the once enormous heaths and marshlands have survived until modern times.

In October 2005, The Flaming Lips recorded a cover of " If I Only Had a Brain " for the soundtrack of the video game Stubbs the Zombie, which features modern rock bands covering songs from the 1950s and 1960s.

Only modern reproductions are hollow-ground as the machinery did not exist in the Middle Ages.

Only in modern times the loss of land and lives could be stopped by building solid dikes.

Only one copy is known to have survived into modern times.

Only as the series progressed did Superman become the wholesome, morally upright figure of modern times.

Only underground bunkers are still able to provide some protection in modern wars.

Only five squares within each row contained numbers which subsequently led to the design of modern day bingo.

Only a few nomadic people have retained this form of lifestyle in modern times.

Only five golfers have won all four of golf's modern Majors at any time during their career, an achievement which is often referred to as a Career Grand Slam: Gene Sarazen, Ben Hogan, Gary Player, Jack Nicklaus, and Tiger Woods.

" Only by classical times is it certain that celery was cultivated.

( Only 18 players have been named as consensus All-Americans three times.

Despite being friends with Margaret, she has driven Margaret mad a few times, notably in " Only a Story ", when she moved in with the Meldrews after her flat had been flooded and drove Margaret to the point of distraction with her complaining and laziness.

Only twice in his pontificate did Pius XII hold a consistory to create new cardinals, in contrast to Pius XI, who had done so 17 times in as many years.

Only in more recent times has silversmithing become mainly work in jewelry, as much less solid silver tableware is now handmade.

Only during particularly trying times, such as the invasion of Caesar, could the Gauls unite under a single leader like Vercingetorix.

Only at such times are the stars visible from Lagash's surface.

Also, Jah is referenced many times in Damian Marley's song Road to Zion and in the songs of Costa Rican singer, Noah, such as " If you don't believe in Jah, we can not be together " It also appears in Gregory Isaac's Night Nurse, " Only you can quench this Jah thirst.

Only a few fragments were known until relatively recent times.

Only 250 copies were printed, and the work has fetched more than four times the original price.

Only three times in 33 years of regular-season Big Eight / Big 12 play has a conference opponent ever won in Lincoln.

Only in the later times of the Republic did the Roman youth begin shaving their beards only partially, trimming it into an ornamental form ; prepubescent boys oiled their chins in hopes of forcing premature growth of a beard.

Only since the 1970s has he also been seen as a Tudor Crown servant: self-serving, inherently loyal to the incumbent monarch, and an able statesman in difficult times.

Only in recent geological times, since the tertiary period, did the typical, rounded, " woolsack weathering " of granite outcrops and granite boulders of the Brocken take place.

Only local women may compete ; they race, and their times are compared to determine the international winner.

Only one-third of the world's Armenian population lives in Armenia, and their pre-World War I population area was six times larger than that of present-day Armenia, including the eastern regions of Turkey, northern part of Iran, southern part of Georgia, Nagorno-Karabakh and Nakhichevan regions of Azerbaijan.

Only with the success of Cowboy was Van Sant now given license to make Idaho ( a project he had originally pitched but was knocked back several times as the script was deemed ' too risky ' by studios ).

Only three times in American history has someone acted as President.

Only three times has the U. S. Open gone to sudden-death after the playoff round, most recently in 2008 when Tiger Woods defeated Rocco Mediate on the first additional playoff hole.