Fifty years ago this week, John F. Kennedy was sworn in as POTUS.
Looking back, President Kennedy's inaugural address on January 20, 1961, is a good survey of the issues of importance to the nation in the middle of the 20th century.
Some of those issues have changed or developed (colonialism, The Americas, The Cold War). Some are similar to those we face today (nuclear weapons, poverty, maintaining peace).
Check it out:
An aside: At this moment in our national life, it's hard not to ponder over this small sentence in the address:
"Civility is not a sign of weakness."