Headlines: Kent State, Olympic terror and Nixon's long goodbye Innovations: Probing space . . . and breaking the sound barrier Culture: From "A Clockwork Orange" to "Saturday Night Fever" Which song was most emblematic of the 20th century? "Brother, Can You Spare A Dime?" "Happy Days Are Here Again" "Eve Of Destruction" "Fight The Power" "I Will Survive" View Results

Test-Tube Generation The new advances in reproductive medicine, and the ethical questions brought up by those advances, can be traced back to a British girl born in 1978. By the time he was 12, Mikhail Baryshinkov had decided to devote his life to dance. Graced with a remarkable combination of strength and elegance, he took a stunning leap in 1974 -- as a defector. More Profiles: Mikhail Baryshnikov Menachem Begin Katharine Graham Ayatollah Khomeini Richard Nixon Anwar Sadat Steven Spielberg Gloria Steinem Margaret Thatcher Sid Vicious

ERA   8-Track Fever   Anything Goes Was Bill Cosby on Richard Nixon's "enemies list?" What ended the mission of Apollo 13? Take the quiz! I don't need bodyguards. -- James Hoffa, president of the Teamsters Union, shortly before his disappearance in 1975.