By the age of six young Johnny indicated that he had the call.

By the time they reach that age, however, Aristotle no longer worries about the evil influence of comedies.

By ancient common law it might be required of all persons above the age of 12, and it was repeatedly used as a test for the disaffected.

By age 8, those who were signing as babies scored an average of twelve points higher on the WISC-III IQ test.

By age three, however, her mother changed her name to Elizabeth Sewall Alcott, after her own mother.

By the age of twenty, Ferdinando I, Duke of Mantua, began commissioning works from him, and he was also employed by local jewelers for figurative designs.

By the help of these discoveries, Angle civilization in the age preceding the invasion of Britannia can be fitted together.

By age 19, Diabelli had already composed several important compositions, including six masses.

By the time of his relatively early death at the age of 51, Erlang created the field of telephone networks analysis.

By the age of 64 after forty years imprisonment ` Abdu ’ l-Bahá was freed by the Young Turks and he and his family began to live in relative safety.

By age 32, Fuller was bankrupt and jobless, living in public, low-income housing in Chicago, Illinois.

By age twenty, she had met and befriended the important, and pivotal, landscape painter of the Barbizon School, Camille Corot, who excelled in figure painting as well.

By the age of four, he was able to play 40 pieces on the piano ; his mother began formally teaching him the next year.

By age 13 Chaplin had fully abandoned education.

By the time Mozart arrived at age 25, in 1781, the dominant styles of Vienna were recognizably connected to the emergence in the 1750s of the early Classical style.

By conceiving a timeless setting — " a vanished age " — and by carefully choosing names that resembled human history, Howard shrewdly avoided the problem of historical anachronisms and the need for lengthy exposition.

By the early 940s Constantine was an old man, perhaps more than 70 years of age.

By 1 July 1933 there were 1, 463 working camps with 250, 000 junior enrollees ( 18 – 25 years of age ), 28, 000 veterans, 14, 000 American Indians, and 25, 000 Locally Enrolled ( or Experienced ) Men ( LEM ).

By the age of Augustus, poets like Virgil closely adhered to the rules of the meter and approached it in a highly rhetorical way, looking for effects that can be exploited in skilled recitation.

By age nine, she was appearing on The Cas Walker Show on both WIVK Radio and WBIR-TV in Knoxville, Tennessee.

By age 16 he had bought his first guitar ( a Harmony acoustic archtop with a sunburst finish ) and begun making contacts in the music business, becoming friends with folk singer Erik Darling, a latter-day member of the Weavers.

By the age of seven, Plato began doing television commercials, reportedly appearing in over 100 spots for companies as diverse as Kentucky Fried Chicken, Dole, and Atlantic Richfield.

By the time Dewey moved to Chicago at the age of thirty-five, he had already published two books on psychology and applied psychology.

By 1952, at the age of 55, Capra effectively retired from Hollywood filmmaking and spent his later years working with Caltech, his alma mater, to produce educational films on science topics.

By the early 20th century, radiometric dating allowed the Earth's age to be estimated at two billion years.

By the end of 1863, at Lincoln's direction, General Lorenzo Thomas had recruited 20 regiments of blacks from the Mississippi Valley.

By comparing the form of several yupanas, researchers found that calculations were based using the Fibonacci sequence 1, 1, 2, 3, 5 and powers of 10, 20 and 40 as place values for the different fields in the instrument.

By that September Johnson declared he was in favor of emancipation, describing slavery as a " cancer on our society ", and also succeeded in enlisting 20, 000 black troops for the Union.

By French aristocrat Mélanie de Gaufridy de Dortan ( 1876 – 1937 ), he had Roger Marie Vincent Philippe Lévêque de Vilmorin ( 12 September 1905 – 20 July 1980 )

By the time of the war, they fielded the SdKfz 10 / 4 and 6 / 2, cargo halftracks mounting single 20 mm or 37 mm AA guns ( respectively ).

By 1700, approximately 20 percent of Berlin's residents were French, and their cultural influence on the city was immense.

By the 10th Revision of the WHO International Statistical Classification of Diseases, Injuries and Causes of Death, low vision is defined as visual acuity of less than 20 / 60 ( 6 / 18 ), but equal to or better than 20 / 200 ( 6 / 60 ), or corresponding visual field loss to less than 20 degrees, in the better eye with best possible correction.

By the time of his death sales of the company had reached C $ 20 million, which is the equivalent of C $ 160 million in 2004 dollars.

By 1951 about 20 % of the British economy had been taken into public ownership.

By contrast, curry powders and pastes produced and consumed in India are extremely diverse ; some red, some yellow, some brown ; some with five spices and some with as many as 20 or more.

By turning these space to public use, the building got 20 % plot ratio more as bonus.

By the 1860 census on the verge of the Civil War, 91. 7 percent of the black population, or nearly 20, 000 people, were free.

By the afternoon of 20 December Vitellius was dead, his armies having been defeated by the Flavian legions.

By the early 18th century, other publishers began to issue collections of dances as well ; a conservative estimate of the number of dances in the English style published between 1651 and 1810 would run to around 20, 000.

By the 1530s, the writings of Erasmus accounted for 10 to 20 percent of all book sales.

By 1916 there are a number of films in which there are around 15 to 20 true reverse-angle cuts per hundred shot transitions, such as The Deserter ( Scott Sidney ) and Going Straight.

By the time of the first men's world championships in 1996, 20 nations played floorball, with 12 of them participating at the tournament.

By 1977 there were 15 to 20 Greenpeace groups around the world.

By running DNA through an EtBr-treated gel and visualizing it with UV light, any band containing more than ~ 20 ng DNA becomes distinctly visible.

By definition, granite is an igneous rock with at least 20 % quartz by volume.

By 1938, an estimated 20 individuals remained in the wild, some 6-8 of which were located in the old-growth forest called the Singer Tract in Louisiana, where logging rights were held by the Chicago Mill and Lumber Company.

By December 1941, Hitler's troops had advanced to within 20 miles of the Kremlin in Moscow.

By October 20, ice is formed over all the rivers.