The Providence Journal, nicknamed the ProJo, is a daily newspaper serving the metropolitan area of Providence, Rhode Island and is the largest newspaper in Rhode Island.
 The newspaper was first published in 1829 and is the oldest continuously-published daily newspaper in the United States.
 The newspaper has won four Pulitzer Prizes.
The Boston Globe (sometimes abbreviated as The Globe) is an American daily newspaper founded and based in Boston, Massachusetts since its creation by Charles H. Taylor in 1872.
 The newspaper has won a total of 26 Pulitzer Prizes as of 2016, and with a total paid circulation of 245,824 from September 2015 to August 2016, it is the 25th most read newspaper in the United States.
 "The Boston Globe" is the oldest and largest daily newspaper in Boston.
Moses "Moe" Louis Annenberg (February 11, 1877 – July 20, 1942) was a Jewish American newspaper publisher, who purchased "The Philadelphia Inquirer", the third-oldest surviving daily newspaper in the United States in 1936.
 "The Inquirer" has the sixteenth largest average weekday U.S. newspaper circulation, and has won eighteen Pulitzer Prizes.
Samuel Eliot Morison, (July 9, 1887 – May 15, 1976) was an American historian noted for his works of maritime history and American history that were both authoritative and popular.
 He received his Ph.D. from Harvard University in 1912, and taught history at the university for 40 years.
 He won Pulitzer Prizes for "Admiral of the Ocean Sea" (1942), a biography of Christopher Columbus, and "John Paul Jones: A Sailor's Biography" (1959).
 In 1942, he was commissioned to write a history of United States naval operations in World War II, which was published in 15 volumes between 1947 and 1962.
 Morison wrote the popular "Oxford History of the American People" (1965), and co-authored the classic textbook "The Growth of the American Republic" (1930) with Henry Steele Commager.
 Over the course of his distinguished career, Morison received eleven honorary doctoral degrees, and garnered numerous literary prizes, military honors, and national awards from both foreign countries and the United States, including two Pulitzer Prizes, two Bancroft Prizes, the Balzan Prize, the Legion of Merit, and the Presidential Medal of Freedom.
The St. Louis Post-Dispatch is the major regional newspaper in St. Louis, in the U.S. state of Missouri, serving Greater St. Louis.
 It is the only remaining printed daily newspaper in the city.
 It is the fifth-largest newspaper in the midwestern United States, and is the 26th-largest newspaper in the U.S.
 According to its masthead, the publication has received eighteen Pulitzer Prizes.
The Philadelphia Inquirer is a morning daily newspaper that serves the Philadelphia metropolitan area of the United States.
 The newspaper was founded by John R. Walker and John Norvell in June 1829 as The Pennsylvania Inquirer and is the third-oldest surviving daily newspaper in the United States.
 Owned by Philadelphia Media Network, "The Inquirer" has the eighteenth largest average weekday U.S. newspaper circulation and has won twenty Pulitzer Prizes.
 It is the newspaper of record in the Delaware Valley.
Edward (Charles) Wagenknecht (March 28, 1900 – May 24, 2004) was an American literary critic and teacher, who specialized in 19th century American literature.
 He wrote and edited many books on literature and movies, and taught for many years at various universities, including the University of Chicago and Boston University.
 He also contributed many book reviews and other writings to such newspapers as the "Boston Herald", "The New York Times", and the "Chicago Tribune" and to such magazines as "The Yale Review" and "The Atlantic Monthly".
The Pulitzer Prize for History, administered by Columbia University, is one of the seven American Pulitzer Prizes that are annually awarded for Letters, Drama, and Music.
 It has been presented since 1917 for a distinguished book about the history of the United States.
 Thus it is one of the original Pulitzers, for the program was inaugurated in 1917 with seven prizes, four of which were awarded that year.
 The Pulitzer Prize program has also recognized some historical work with its Biography prize, from 1917, and its General Non-Fiction prize, from 1952.
The New York Times (sometimes abbreviated NYT and The Times) is an American daily newspaper, founded and continuously published in New York City since September 18, 1851, by The New York Times Company.
 "The New York Times" has won 122 Pulitzer Prizes, more than any other newspaper.
 The paper's print version in 2013 had the second-largest circulation, behind "The Wall Street Journal", and the largest circulation among the metropolitan newspapers in the United States.
 "The New York Times" is ranked 18th in the world by circulation.
 Following industry trends, its weekday circulation had fallen in 2009 to fewer than one million.
The Boston Herald is an American daily newspaper whose primary market is Boston, Massachusetts and its surrounding area.
 It was founded in 1846 and is one of the oldest daily newspapers in the United States.
 It has been awarded eight Pulitzer Prizes in its history, including four for editorial writing and three for photography before it was converted to tabloid format in 1981.
 The "Herald" was named one of the "10 Newspapers That 'Do It Right' in 2012 by "Editor & Publisher".

Question: Edward (Charles) Wagenknecht ontributed many book reviews and other writings to an American daily newspaper that has been awarded how many Pulitzer Prizes in its history?
Answer: eight