1970-1979

POPULATION > 204,879,000

UNEMPLOYMENT > 4,088,000

NATIONAL DEBT > $382 BILLION

AVERAGE SALARY > $7,564

LIFE EXPECTANCY > FEMALES 74.8 YEARS; MALES 67.1 YEARS

FOOD PRICES > MILK 33 CENTS A QUART; BREAD 24 CENTS A LOAF; ROUND STEAK $1.30 A POUND

1970

The floppy disk is introduced.

The Beatles announce their break up.

[ILLUSTRATION OMITTED]

1980

CNN is launched as the first all news network.

Post-It Notes are introduced by 3-M.

[ILLUSTRATION OMITTED]

John Lennon is assassinated by Mark David Chapman.

1971

Intel introduces the microprocessor.

1972

David Bowie's alter ego Ziggy Stardust debuts.

San Francisco's Transamerica Building, designed by william L. Pereira, opens.

The Godfather appears in movie theaters.

Nike hits the scene.

[ILLUSTRATION OMITTED]

1974

The Sears Tower opens in Chicago.

It becomes the tallest building in the world.

1981

MTV debuts.

Sandra Day O'Connor becomes the first woman Supreme Court justice.

Pac-Man is introduced in the United States and sparks a huge craze.

[ILLUSTRATION OMITTED]

1982

The Vietnam Memorial is erected in Washington, D.C.

1983

Columbia University, the last all male Ivy League school, begins accepting women.

Trump Tower opens in New York City.

[ILLUSTRATION OMITTED]

1974

Richard Nixon, facing impeachment charges, is forced to resign after the Watergate scandal. …