1. Overview

VI. The World Wars and the Interwar Period, 1914–1945> A. Global and Comparative Dimensions> 5. Technological Developments> d. Agricultural Production and Food Technology

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  The Encyclopedia of World History.  2001.

d. Agricultural Production and Food Technology
1917
Clarence Birdseye (1886–1956) began development of method for quick freezing of foods in small containers; placed on market in 1929.	1
1939
Paul Muller synthesized DDT for use as an insecticide. Othmar Zeidler had prepared DDT in 1874, but its insecticidal qualities had not been suspected.	2
1940 Ff
Development of artificial insemination to improve livestock breeding.	3
1945 Ff
Unit packaging of foodstuffs improved by development of plastic packaging films. Trend toward prepared “convenience” foods for household use.	4

The Encyclopedia of World History, Sixth edition. Peter N. Stearns, general editor. Copyright © 2001 by Houghton Mifflin Company. Maps by Mary Reilly, copyright 2001 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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