Michael E. Telzrow explains:
And so it was for nearly five centuries. Fagan writes that it was a climatic golden age--a period of unusually warm summers and mild winters that produced atypical crop success. Thirteenth-century life was generally short and characterized by heavy labor for rural inhabitants, but crop failures were generally rare.
Climatic golden age: the weather was warmer than today prior to the advent of the "Little Ice Age" around 1300 A.D., and agriculture and commerce benefited | New American, The | Fi