Thomas Edison announced his invention of the phonograph
in 1877.       

Edison stumbled on one of his great inventions—the phonograph—
while working on a way to record telephone communication at his laboratory in Menlo Park, New Jersey. His work led him to
experiment with a stylus on a tinfoil cylinder, which, to his
surprise, played back the short song he had recorded, “MARY
HAD A LITTLE LAMB”. Public demonstrations of the phonograph
made the Yankee inventor world famous, and he was dubbed the
“Wizard of Menlo Park.”

Thomas Alva Edison (February 11, 1847 – October 18, 1931)

1929

The Wm. Wrigley Jr. Company, known as the Wrigley Company,
is a multinational chewing gum (Wrigley’s gum) company, based
in the Global Innovation Center (GIC) in Goose Island, Chicago.       

Wrigley’s is wholly owned by Mars, Incorporated, and, along with
Mars chocolate bars and other candy products, makes up Mars
Wrigley Confectionery. It is the largest manufacturer and marketer
of chewing gum in the world.

The company currently sells its products in over 180 countries
and districts, operates in over 50 countries, and has 21 production facilities in 14 countries including the United States,

1929 issue        
        
        
       

Giovanni Agnelli
(13 August 1866 – 16 December 1945)

Agnelli was an Italian businessman, who 
founded Fiat car manufacturing in 1899.
During its more than century-long history,
Fiat has also manufactured railway engines  
and carriages, military  vehicles, farm tractors, 
and aircraft.

In 2013, Fiat (together with Chrysler) was the 
second largest European automaker by volumes 
produced, and the seventh in the world ahead of 
Honda, PSA Peugeot Citroën, Suzuki, Renault,
and Daimler AG.

Front view of the Lingotto headquarters of Fiat
in Turin (2013).

Armour & Company was an American company and was one
of the  five leading firms in the meat packing industry. It was
founded in Chicago, in 1867, by the Armour brothers led by
Philip Danforth Armour Sr. 

In connection with its meatpacking operations, the company
also ventured into pharmaceuticals (Armour Pharmaceuticals)
and soap manufacturing, introducing Dial soap in 1948.

(From Wikipedia, the free encyclopedia)

   

Philip Danforth Armour Sr.
(16 May 1832 – 6 January 1901)