Britannica Educational Publishing 
History of Agriculture [PDF ebook] 

Agriculture-that is, using and managing natural resources-has a long and complex history. For thousands of years, societies have relied on plants and animals for food and other items, making agriculture as vital to their survival as it is to ours. The cultivation of various crops and livestock over time and throughout the world are examined, revealing the history behind and importance of much of the food we eat today. Also covered are the techniques and equipment that have been developed over time to facilitate agricultural production.