- publisher: Unpublished
- date: 12/10/2014 5:45:34 AM
- originalFile: 252-the-mainspring-of-human-progress-back-cover.pdf
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- correspondenceTo:
- docReferenceNumber: 252
- correspondenceFrom:
- author: Henry Grady Weaver
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The Mainspring of Human Progress
HENRY GRADY WEAVER
FOR SIX THOUSAND YEARS PEOPLE DIED OF HUNGER.
WHY DON'T WE?
This is the basic question dealt with in MAINSPRING.
But the attempt to find the answer leads into a wide range
of subjects, such as:
• What is the greatest of all our modern inventions?
• Who invented zero (O) and why?
• Just what is the difference between a republic and
a democracy?
• What simple invention contributed most to our
national wealth?
• What w...
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252-The Mainspring of Human Progress Back Cover.pdf