In 1922 Sir Fredrick Grant Banting made this medical break through.
In 1928 Alexander Flemming made this medical discovery
In 1920 Earle Dickson invented this to help with situations at home.
This is known by how it's eaten, invented in 1928.
Invented in 1927, this is iconic for what it's eaten out of.
Bell Telephone and the U.S. Department of Commerce conducted the first long distance use of this that took place between Washington D.C. and New York City on April 9th 1927.
Vacuum tubes helped make this product more compact.
This was seen through red and green glasses for the first time in 1922.
In 1921 John Larson invented this Alternative for truth serum
in 1923 John Harwood invented this, making the manual ones obsolete
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