WASHINGTON (AP) – Jet planes and organ transplants, the careers of John and Robert Kennedy, environmental awareness, the Cold War – events and people that helped shape America but that Americans rejected as subjects for postage stamps.

In the post office-sponsored poll of Americans for postage stamp subjects to highlight people and events of the millennium's last half-century, the topics that failed to make the cut for the 1950s and 1960s may be as telling as those that won.

For each decade the U.S. Postal Service compiled a list of 30 subjects and solicited votes through ballots at post offices and on the Internet. The top 15 vote-getters for each decade will become stamps.

When results of the 1960s voting were announced, questions were raised about how the assassinations of John and Robert Kennedy and Martin Luther King Jr. could have been overlooked.

These figures, who made a permanent mark on the nation, were included in the possible subjects, though not through their murders. Postal spokesman Don Smeraldi said the agency did not seek to highlight tragedy.

The 1960s winners:
Man walks on the moon, 534,734; Super Bowl, 459,578; peace symbol, 407,964; Martin Luther King Jr.'s "I Have a Dream" speech, 392,441; the Green Bay Packers, 385,334; the Beatles, 380,177; the Ford Mustang, 371,804; Vietnam War, 356,113; The Barbie Doll, 350,115; Roger Maris breaks Babe Ruth's single-season home run record, 342,958; the computer chip, 335,593; lasers, 322,700; Woodstock, 303,200; "Star Trek," 257,395; the Peace Corps, 248,063.

1960s nonwinners:
Development of shopping malls, 242,222; the Motown sound, 241,329; the Twist, 239,012; the mod look, 230,193; the Kennedy brothers, 227,139; environmental awareness, 218,139; pop art, 214,081; the struggle for civil rights, 190,187; television "live via satellite," 162,003; Televised golf, 135,409; Americans demonstrate, 127,019; "Easy Rider," 119,108; "Rowan & Martin's Laugh-In," 110,511; the Great Society and Medicare, 98,616; "Catch-22," 65,409.

1950s winners:
Drive-in movies, 456,176; "I Love Lucy," 453,903; Dr. Seuss' "The Cat in the Hat," 449.919; rock 'n' roll, 415,052; victory over polio, 406,251; cars with tail fins and chrome, 389,121; New York Yankees and Brooklyn Dodgers in the World Series, 386,289; teen fashions, 372,436; stock-car racing, 348,608. U.S. launches satellites, 346,789; the "Shot Heard Round the World," the home run that gave the New York Giants the 1951 National League pennant, 340,036; school desegregation, 334,045; Rocky Marciano, 314,045; 3-D movies, 308,310; the Korean War, 292,743.

1950s nonwinners:
President Dwight Eisenhower, 291,301; the Cold War, 279,913; the interstate highway system, 267,757; transistor radios, 265,449; advances in surgery such as kidney transplants and the heart-lung machine, 263,389; commercial jet aircraft, 251,110; computers for business, 237,883. The Hula Hoop, 229,793; "Singin' in the Rain," 227,135; Maureen "Little Mo" Connolly, 213,880; "West Side Story," 211,465; families move to the suburbs, 200,070; American modern furniture, 95,451; New York School of Art, 71,936; "On the Waterfront," 66,621.