Lydia Saad is a Senior Editor at Gallup. She writes extensively about U.S. public opinion for Gallup.com, authoring more than 1,500 news articles since 1992. In her role as Advanced Consultant, she leads the Wells Fargo/Gallup Investor Optimism and Retirement Optimism Index, designing this quarterly public release study and analyzing its results.
After the worst one-day decline in U.S. history -- "Black Monday" in October 1987 -- Americans were unclear on why the stock market had unraveled.
In 1953, Gallup found 69% of Americans in favor of adding the words "under God" to the Pledge of Allegiance, while 21% were opposed.
Public unease with the pace of racial integration grew after President John F. Kennedy used federal troops to enforce a black man's right to attend Ole Miss.
As the U.S. Constitution turns 230, the Gallup Vault reviews what Americans thought of the historical document at its bicentennial in 1987.
Americans opposed a pardon for Richard Nixon in 1974, but a decade later they said President Gerald Ford had done the right thing in granting it.
Of 25 U.S. business and industry sectors, the movie and oil and gas industries generate the most politically polarized reviews.
Days after Princess Diana's death in 1997, 50% of Britons and 27% of Americans were as upset as if someone they knew personally had died.
In 1957, two in three Americans were collecting S&H, Gold Bond or other brands of trading stamps earned by shopping at participating retailers.
Despite facing stiffer resistance from North Korea than expected at the start of the Korean War, Americans rejected using the atom bomb in August 1950.
Americans' impressions of six major sectors of the U.S. economy grew significantly more positive this year. Others improved slightly, while none lost ground.
In 1947, as the Iron Curtain was descending on Europe, Gallup found most Americans suspicious of Russia's military and cultural intentions.
In 1993, Americans had a mixed response to easing restrictions on gays serving in the military, and both sides felt strongly about their view.