By virtue of his self-reliance, his individualism and his freedom from external restraint, the private eye is a perfect embodiment of the middle class conception of liberty, which amounts to doing what you please and let the devil take the hindmost.

By the middle of the summer, many of the larvae apparently receive such a good diet that it is `` optimal '', and it is then that young queens begin to appear.

By virtue of the legal responsibilities of the Department of Employment in the farm placement program, we necessarily found ourselves in the middle between these two forces.

By the middle of the 19th century, industrialisation swept away most of the city's medieval rules of production and commerce, although the entirely corrupt remains of the city's mediæval constitution was kept in place ( compare the famous remarks of Georg Forster in his Ansichten vom Niederrhein ) until 1801, when Aachen became the " chef-lieu du département de la Roer " in Napoléon's First French Empire.

By the middle of the 2nd millennium BC, the Babylonian mathematics had a sophisticated sexagesimal positional numeral system.

By 1987 Ethernet was clearly winning the standards battle over Token Ring, and in the middle of that year Apple introduced EtherTalk 1. 0 for the newly released Macintosh II computer.

By the middle of the 6th century the king of Babylon was Nabonidus.

By the middle of the dry season, the intertropical convergence zone moves south of Chad, taking the rain with it.

By the 1920s, the emerging middle and working classes were powerful enough to elect a reformist president, Arturo Alessandri Palma.

By the middle of the decade, some of the 1950s generation of American comedians, such as Jerry Lewis, went into decline, while Peter Sellers found success with international audiences in his first American film The Pink Panther.

By the middle of the 19th century it was the largest and most modern glassworks in the world.

By the middle of the 18th century, " casuistry " became a synonym for moral laxity.

By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared.

By the middle of the century, the population was bolstered by emigration from the Canary Islands, resettling the northern part of the colony and planting tobacco in the Cibao Valley, and importation of slaves was renewed.

By the middle of December, some high-speed runs were made, in excess of but still well below Campbell's existing record.

By the middle of the 3rd century BC, the Romans had secured the whole of the Italian peninsula, except Gallia Cisalpina ( Po Valley ).

By the middle of June the political situation in Barcelona had deteriorated and the POUM — painted by the pro-Soviet Communists as a Trotskyist organisation — was outlawed and under attack.

By the next century, gardens became available to the middle class as well.

By 1793, the execution of the French king and the onset of the Terror disillusioned the Bildungsbürgertum ( educated middle classes ).

By the middle of the 12th century, coats of arms were being inherited by the children of armigers ( persons entitled to use a coat of arms ) across Europe.

By the middle of the 14th century, the power of the Mongols was declining, and the Grand Princes felt able to openly oppose the Mongol yoke.

By 2000 the social structure included a politically active working class, a primarily clerical middle class, and an upper bracket consisting of managers, entrepreneurs, and professionals.

By the middle of the 17th century, plays such as Robert Davenport's King John and Matilda, although based largely on the earlier Elizabethan works, were transferring the role of Protestant champion to the barons and focusing more on the tyrannical aspects of John's behaviour.

By the middle of the decade the first true kickboxing events were being held in Osaka.

By the middle of 1990, Taylor controlled much of the country, and by June laid siege to Monrovia.

By the 1960s the school was building a vast publishing and research network reaching across France, Europe, and the rest of the world.

By the early 1960s, most of East and Central Africa, where the majority of the Ismāʿīlī population on the continent resided including Tanganyika, Kenya, Uganda, Malagasy, Rwanda, Burundi and Zaire, had attained their political independence.

By the late 1960s he had started to become interested in scientific areas outside of mathematics.

By the 1940s, the term commonly was capitalized, Negro, but by the mid 1960s it was considered disparaging.

By the 1960s, as VFL clubs increasingly recruited the best players from other states, they began to dominate the competition and the last match was played in 1976, with North Adelaide being the last non-Victorian winner in 1972.

By the 1960s, more citizens worked in service industries or for the canton-level government than in manufacturing.

By the early 1960s, the monument had grown very blackened from coal soot and automobile exhaust, and during 1965 – 1966 it was cleaned through bleaching.

By the late 1960s, the area of LAFTA had a population of 220 million and produced about $ 90 billion of goods and services annually.

By the early 1960s, US research on the Nike Zeus missile system had developed to the point where small improvements would allow it to be used as the basis of a " real " ABM system.

By the mid 1960s, binary addressing had become the standard architecture in most computer designs, and main memory sizes were most commonly powers of two.

By the 1960s, " the Big Apple " was known only as an old name for New York.

By the 1960s NATO had adopted the 5. 56 NATO cartridge.

By the 1960s, college cheerleaders began hosting workshops across the nation, teaching fundamental cheer skills to high-school-age girls.

" By 1967, critics were suggesting that the programme no longer reflected life in 1960s Britain, but reflected how life was in the 1950s.

By the end of the 1960s, admission to CUNY's flagship City College had become highly competitive.

By the late 1960s, the sexual revolution of the baby boomer generation had refocused public attitudes about sex.

By the 1960s – 1970s quantum electrochemistry was developed by Revaz Dogonadze and his pupils.

By the late 1960s, Humble officials realized that the time had come to develop a new brand name that could be used nationwide.

By the 1960s science fiction was combining sensationalism with political and technological critiques of society.

By the 1960s, motor vehicles were being restricted or banned from crossing the border, while only Spanish nationals employed on the Rock being allowed to enter Gibraltar.

By the 1960s, TV series, such as The Addams Family and The Munsters, used these stereotypes for camp comedy.

By the 1960s, the Hammond became popular with pop groups and was used on the British pirate station Radio 390.

By the 1960s, however, the quantitative revolution lead to strong criticism of regional geography.

By then the textile industry had started its decline ; only one factory, Veneta, managed to continue into the 1960s, when it also had to close its doors.

By the mid 1960s, Viola Spolin's classes were handed over to her protégé, Jo Forsberg, who further developed Spolin's methods into a one-year course, which eventually became The Players Workshop, the first official school of improvisation in the USA.