QUES: The Bronx's evolution from a hot bed of Latin jazz to an incubator of hip hop was the subject of an award-winning documentary, produced by City Lore and broadcast on PBS in 2006, "From Mambo to Hip Hop: A South Bronx Tale". Hip Hop first emerged in the South Bronx in the early 1970s. The New York Times has identified 1520 Sedgwick Avenue "an otherwise unremarkable high-rise just north of the Cross Bronx Expressway and hard along the Major Deegan Expressway" as a starting point, where DJ Kool Herc presided over parties in the community room.
When did a PBS documentary air about the Bronx's music history?

ANS: 2006

QUES: Just as the navigational approach would require programs to loop in order to collect records, the relational approach would require loops to collect information about any one record. Codd's solution to the necessary looping was a set-oriented language, a suggestion that would later spawn the ubiquitous SQL. Using a branch of mathematics known as tuple calculus, he demonstrated that such a system could support all the operations of normal databases (inserting, updating etc.) as well as providing a simple system for finding and returning sets of data in a single operation.
Who used tuple calculus to show the functionality of databases?

ANS: Codd

QUES: Czech continued to evolve and gain in regional importance for hundreds of years, and has been a literary language in the Slovak lands since the early fifteenth century. A biblical translation, the Kralice Bible, was published during the late sixteenth century (around the time of the King James and Luther versions) which was more linguistically conservative than either. The publication of the Kralice Bible spawned widespread nationalism, and in 1615 the government of Bohemia ruled that only Czech-speaking residents would be allowed to become full citizens or inherit goods or land. This, and the conversion of the Czech upper classes from the Habsburg Empire's Catholicism to Protestantism, angered the Habsburgs and helped trigger the Thirty Years' War (where the Czechs were defeated at the Battle of White Mountain). The Czechs became serfs; Bohemia's printing industry (and its linguistic and political rights) were dismembered, removing official regulation and support from its language. German quickly became the dominant language in Bohemia.
When was the Kralice Bible published?

ANS: late sixteenth century

QUES: The advent of the Industrial Revolution in Britain provided a great boost to cotton manufacture, as textiles emerged as Britain's leading export. In 1738, Lewis Paul and John Wyatt, of Birmingham, England, patented the roller spinning machine, as well as the flyer-and-bobbin system for drawing cotton to a more even thickness using two sets of rollers that traveled at different speeds. Later, the invention of the James Hargreaves' spinning jenny in 1764, Richard Arkwright's spinning frame in 1769 and Samuel Crompton's spinning mule in 1775 enabled British spinners to produce cotton yarn at much higher rates. From the late 18th century on, the British city of Manchester acquired the nickname "Cottonopolis" due to the cotton industry's omnipresence within the city, and Manchester's role as the heart of the global cotton trade.
Whic British city was nicknamed "Cottonopolis" because of its cotton production?

ANS:
Manchester