1959: Political use of television is still in its infancy, though it soon becomes a major force in elections.

Today: The power of the internet is still limited for politicians, but is expected to become a big factor in the coming years.

1959: There are limited roles for older actresses in Hollywood movies, primarily mother and grandmother-type roles.

Today: While there is a still an emphasis on youth in Hollywood, there is a greater variety of roles for older women in movies, reflecting the many roles women play in society.

1959: Images of sex and violence are limited in the movies, in part because of a code that restricts such images.

Today: While there is a movie ratings system in place, there are only tenuous limits on how sex and violence are depicted.

1959: Sexually transmitted diseases are diagnosed and treated in both men and women, though many...