20th century

=== Agriculture ===
[[File:Wheat yields in Least Developed Countries.svg|thumb|Wheat yields greatly increased from the [[Green Revolution]] in the world's [[least developed countries]].]]

*[[Norman Borlaug]] fathered the [[Green Revolution]], the set of research [[technology transfer]] initiatives occurring between 1950 and the late 1960s that increased agricultural production in parts of the world, beginning most markedly in the late 1960s, and is often credited with saving over a billion people worldwide from starvation.