What are the Examples of library research?

Why was the strategy the patriots used at the battle of Yorktown important? When was the Hubert Humphrey Metrodome built? Who has scored the most goals in an International soccer game? What did the black codes of the early English colonies do? How long was east and West Germany split? Did the stock market crash affect people who did not buy and sell stocks? How did the second great awakening encourage reform? Was Lt William calley charged with a war crime? What was on the first McDonald's menu? What does the declaration of independce explain? How does the US Have the Declaration of Independence if they sent it to Britain? Does good fences make good neighbor? Who insured the mayflower? What ideas did Thomas Jefferson copy from John Locke? What is a calculating table or frame instrument used for performing arithmetical calculations an ancient calculator still used in china? How Was the North American Empire Divided? Did green berets carry JFK coffin? What can be said about the qualifications of Abraham Lincoln to be the US President? What problems do multinational firms face? Where does the surname eyles originate from?