WASHINGTON (CNN) -- The Richard Nixon Presidential Library will allow access Tuesday to about 154 hours of Nixon White House tape recordings and 30,000 pages of documents that were formerly classified.



President Nixon announces the U.S. incursion into Cambodia during the Vietnam War in April 1970.



Among the tapes and documents are conversations about the Vietnam War, Nixon's second inauguration, the U.S. Supreme Court's Roe v. Wade decision in 1973 and the first Watergate trial, according to a library statement.



Tuesday's release is the 13th opening of Nixon White House tapes since 1980, the statement said.



The new Nixon tapes and documents will be available on the Internet and in the Richard Nixon libraries in College Park, Maryland, and Yorba Linda, California.



Nixon resigned August 9, 1974, over the Watergate scandal -- the first president to resign from office.



President Ford pardoned Nixon the following month, saying it was necessary for the nation to heal after Watergate.
Who is to open access to 154 hours of recordings? Who was Richard Nixon? What do the tapes include? What are the taped conversations about? How many pages of formerly classified documents? Pages of documents released where? What will the Richard Nixon Presidential Library open access to?
The Richard Nixon Presidential Library President conversations about the Vietnam War, Nixon's second inauguration, the U.S. Supreme Court's Roe v. Wade decision in 1973 and the first Watergate trial, the Vietnam War, Nixon's second inauguration, the U.S. Supreme Court's Roe v. Wade decision in 1973 and the first Watergate trial, 30,000 The Richard Nixon Presidential Library White House tape recordings and 30,000 pages of documents that were formerly classified.
question: Who is to open access to 154 hours of recordings?, answer: The Richard Nixon Presidential Library | question: Who was Richard Nixon?, answer: President | question: What do the tapes include?, answer: conversations about the Vietnam War, Nixon's second inauguration, the U.S. Supreme Court's Roe v. Wade decision in 1973 and the first Watergate trial, | question: What are the taped conversations about?, answer: the Vietnam War, Nixon's second inauguration, the U.S. Supreme Court's Roe v. Wade decision in 1973 and the first Watergate trial, | question: How many pages of formerly classified documents?, answer: 30,000 | question: Pages of documents released where?, answer: The Richard Nixon Presidential Library | question: What will the Richard Nixon Presidential Library open access to?, answer: White House tape recordings and 30,000 pages of documents that were formerly classified.