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 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 early June they were a hundred miles off the coast of Ceylon, by which time all four missionaries were hardened seafarers.

By September 1940 the Suite had developed into a collection of six songs, `` four spirituals, a dream, and a lullaby ''.

By 1970, LAFTA expanded to include four more Latin American nations: Bolivia, Colombia, Ecuador, and Venezuela.

By managing all four populations as one-through strategic transfers, gene-loss is reduced from 8 % per decade to 2 % per decade, without any increase in bongo numbers in Kenya.

By the 19th century, European cavalry fell into four main categories:

By October 19, frequent U-2 spy flights showed four operational sites.

By 1943 however, large numbers of fleet and light carriers became available, which required larger formations of three or four carriers.

By four to six years, chimps are weaned and infancy ends.

By the 1930s, Ben Duncan and others popularized streamlined trap kits leading to a basic four piece drum set standard: bass, snare, tom-tom, and floor tom.

By 1968 Thomas had increased sales in the four fried chicken restaurants so much that he sold his share in them back to Sanders for more than $ 1. 5 million.

By the English Middle Ages the term had been expanded to include not only the message, but also the New Testament which contained the message, as well as more specifically the four books of the Bible in which the life, death and resurrection of Jesus are portrayed.

For example, periodic acid according to Kekuléan structure theory could be represented by the chain structure I-O-O-O-O-H. By contrast, the modern structure of ( meta ) periodic acid has all four oxygen atoms surrounding the iodine in a tetrahedral geometry.

By their percentage contribution to the greenhouse effect on Earth the four major gases are:

By the time of the redaction of the Mishnah, Rosh Hashanah 1: 1 ( c. 200 CE ), jurists had identified four new-year dates:

By 1982, only four players and three starting pitchers remained from the 1980 squad.

By the end of 1919, four Dublin Metropolitan Police and 11 RIC men had been killed.

By 2004, they had four children together: Eric, Sarah, Nancy, and Sofia.

By then, the work consisted of four books of eighty chapters, and each book was named after statements from the creed: Book 1 on God the Creator, Book 2 on the Redeemer in Christ, Book 3 on receiving the Grace of Christ through the Holy Spirit, and Book 4 on the Society of Christ or the Church.

By 1894, Dewey had joined Tufts, with whom he would later write Ethics ( 1908 ), at the recently founded University of Chicago and invited Mead and Angell to follow him, the four men forming the basis of the so-called " Chicago group " of psychology.

By moving leather tuning rings up and down the neck, a kora player can retune the instrument into one of four seven-note scales.

By at least the 11th century BC the island was ruled by a kingdom / chiefdom, and the subsequent transition to aristocratic ( or possibly tyrannic ) rule occurred sometime over the next four centuries.

By 1913 there were four planes, now including a British Sopwith and long term plans to create six naval air stations by 1918.

By 1842, four of the other American colonies were incorporated into Liberia, and one was destroyed by indigenous people.

By the summer of 1939, the Luftwaffe had nine Jagdgeschwader ( fighter wings ) mostly equipped with Messerschmitt Bf 109, four ' Zerstörergeschwader ( destroyer wings ) equipped with the Messerschmitt Bf 110 heavy fighter, 11 Kampfgeschwader ( bomber wings ) equipped with mainly the Heinkel He 111 and the Dornier Do 17Z, and four Sturzkampfgeschwader ( dive bomber wings ).