26a. A baby boomer is a person who was born during the demographic post-World War II baby boom between the years 1946 and 1964, according to the U.S. Census Bureau
b. Levittown is a hamlet in the Town of Hempstead located in Nassau County, New York on Long Island.
c. It was the 1956 Eissenhower administration legislation properly called the Federal-Aid Highway Act which authorized the construction of 40,000 miles of interstate highways in the US.
d. On 26 September 1960, 70 million U.S. viewers tuned in to watch Senator John Kennedy of Massachusetts and Vice President Richard Nixon in the first-ever televised presidential debate. It was the first of four televised "Great Debates" between Kennedy and Nixon.
e. American television coverage of the Civil Rights Movement ultimately contributed to a redefinition of the country's political as well as its televisual landscape.

27(1). Economic growth is the increase in the amount of the goods and services produced by an economy over time. It is conventionally measured as the percent rate of increase in real gross domestic product, or real GDP.
2. In language, a word is the smallest element that may be uttered in isolation with semantic or pragmatic content (with literal or practical meaning). This contrasts with a morpheme, which is the smallest unit of meaning but will not necessarily stand on its own. A word may consist of a single morpheme (for example: oh!, rock, red, quick, run, expect), or several (rocks, redness,