All inventions cause the world to react in one way or another. In many cases, discoveries push the boundaries of human output ...

At head of title: Smithsonian. Summarizes one thousand notable inventions and discoveries of ancient and modern times, from 3,000,000 B.C. to the beginning of the twenty-first century A.D.

Simple inventions like the wheel, printing press, and pasteurization revolutionized how you grow, prepare, and share food ...