Wessels Living History Farm
Living History Farm: Contour Plowing
Wessels Living History Farm explains some of the history behind contour plowing in the United States. Great photo illustrating contour planting on terraces in Iowa included.
The History Cat
The History Cat: Age of Exploration: The Columbian Exchange
A fascinating look at the exchanges that took place around the world after the Americas were discovered. This covered the gamut from diseases which wiped out 90% of the native peoples in North and South America, to farm animals, tools,...