A Delta Air Lines McDonnell Douglas DC-9-30, similar
to the one involved.

On July 31, 1973, Delta Flight 723 struck a concrete seawall
as it descended into Boston’s Logan International Airport
amid heavy ground fog.

The collision broke off some of the fuselage and the plane
slimed into the ground, breaking apart and bursting into
flames.

Almost all on board died instantly in what became the worst
air disaster at Logan and in all of New England.

Ranger 7, an unmanned U.S. lunar probe, took the first close-up
images of the moon—4,308 in total—before it hit the lunar surface northwest of the Sea of Clouds. The images were 1,000 times as
clear as anything ever seen through earth-bound telescopes.

Wesley Snipes  is a actor and martial artist. In a film career
spanning more than thirty years, Snipes has appeared in a
variety of genres, such as numerous thrillers, dramatic
feature films, and comedies, though he is best known for
his action films.

On the morning of July 31, 1975, James Riddle Hoffa, one of
the most influential American labor leaders of the 20th century,
was officially reported missing after he failed to return home
the previous night.