What is the Middle Ages. See periodization.

• Internet Medieval Sourcebook

• The Age of Gothic Cathedrals, Mount Holyoke College 

• Les très riches heures du Duc de Berry — Don't let the title fool you. The site is in English. Scroll down to the bottom of the page and click on the months to see some beautiful images. Here I have posted the most famous one, which shows the grape harvest in September.