On May 4, 1970, in Kent, Ohio, 28 National Guardsmen fired their weapons at a group of anti-war demonstrators on the Kent State University campus, killing four students and wounding nine.

The tragedy was a watershed moment for a nation divided by the
conflict in Vietnam, and further galvanized the anti-war movement.

On March 14, 1958, the RIAA (Recording Industry Association
of America®)  awarded its first official Gold Record to Perry
Como for his smash-hit single “Catch A Falling Star.”

For as long as most people have been buying popular music
on records, tapes and compact discs, the records, tapes and
disks they’ve bought have carried labels like “Certified Gold!”
and “Double Platinum!!”

Those labels have been in use since the early days of the rock-
and-roll era.

Pierino Ronald "Perry" Como (May 18, 1912 – May 12, 2001)

In the official RCA Records Billboard magazine memorial,
Como’s life was summed up in these few words: "50 years
of music and a life well lived. An example to all."    

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.

On May 9, 1914, President Woodrow Wilson (above) issued a
presidential proclamation that officially established the first
national Mother’s Day holiday to celebrate America’s mothers.

The idea for a “Mother’s Day” is credited by some to Julia Ward
Howe (1872) and by others to Anna Jarvis (1907), who both
suggested a holiday dedicated to a day of peace.

In his first Mother’s Day proclamation, Wilson stated that the
holiday offered a chance to “[publicly express] our love and
reverence for the mothers of our country.”

J. C. Leyendecker painted ‘Pot of Hyacinths’ to be used
on the cover of the Saturday Evening Post’s May 30, 1914
issue.

On January 27, 1888, the National Geographic Society was
incorporated in Washington, D.C., for “the increase and
diffusion of geographical knowledge.

The 33 men who originally met and formed the National
Geographic Society were a diverse group of geographers,
explorers, teachers, lawyers, military officers and financiers.

All shared an interest in scientific and geographical knowledge,
as well as an opinion that in a time of discovery, invention,
change and mass communication, Americans were becoming
more curious about the world around them.