Uniformed Letter Carrier with Child in Mailbag by Smithsonian Institution, After parcel post service was introduced in 1913, at least two children were sent by the service. With stamps attached to their clothing, the children rode with railway and city carriers to their destination. The Postmaster General quickly issued a regulation forbidding the sending of children in the mail after hearing of those examples.
A National Guardsman stands at the ready at a Detroit intersection during the summer riots of 1967. Frustration and despair erupted from the sidewalks of northern U.S. cities where blacks saw little change following the Voting Rights Act of 1965.