Here's a quiz for the week.
What do the headlines to the left have in common? Why are they significant?
NOTE: SPOILER ALERT - the answer has been posted below! Congrats to Jon M!
Here's a suggestion - not really a clue - but DPL has access to The New York Times going back to 1851. Online access is available with a DPL card.
Don't have a card? Register online at http://denverlibrary.org/library-card.