John F. Kennedy was nominated as a presidential candidate by the US Democrats.
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The Treaty of Berlin was signed, granting Serbia, Montenegro, and Romania independence from Turkey.
New York City experienced a 25-hour blackout when a substation on the Hudson River was struck by lightning, causing two circuit breakers to trip.
Mexican grill chain Chipotle opened its first restaurant.
Legend Frank Sinatra recorded his debut single with the Harry James band.
The USSR's Luna 15 robotic spacecraft was launched from the Baikonur Cosmodrome in Kazakhstan.