Barbara Bush, the former US first lady died on Tuesday at the age of 92.
The cause of her death wasn't immediately known.
Bush, who passed away after a series of hospitalizations, is known for being a fierce champion of literacy. She was the second woman in American history to have had a husband and a son elected as president, after Abigail Adams.
Bush once wrote how she “had the best job in America." and in her 1994 memoir, Bush described her days at the White House as “interesting, rewarding and sometimes just plain fun.” We take a look at Bush’s legacy as First Lady, and how the role has evolved through the years.
Stacy Cordery, first ladies historian, bibliographer for the National First Ladies Library and professor of history at Iowa State University; her latest book is "Juliette Gordon Low: The Remarkable Founder of the Girl Scouts" (Penguin Books, 2013) and she tweets @StacyCordery
Catherine Allgor, first ladies historian and president of the Massachusetts Historical Society; she is the author of several books, including “Parlor Politics: In Which the Ladies of Washington Help Build a City and a Government” (University of Virginia Press, 2000) and she tweets @CatherineAllgor