Global wind pattern on the earth without an ocean, axiz tilt, and rotation.

A well-illustrated and colorful site about various aspects of the Middle Ages. Find sections on the death of Thomas Becket, A Book of Hours, Medieval Patterns, and Medieval Women.

This silk textile fragment, from the Fatimid period, has designs of geometric patterns, plant elements, and benedictory inscriptions.

A well-illustrated and colorful site about various aspects of the Middle Ages. Find sections on the death of Thomas Becket, A Book of Hours, Medieval Patterns, and Medieval Women.

A well-illustrated and colorful site about various aspects of the Middle Ages. Find sections on the death of Thomas Becket, A Book of Hours, Medieval Patterns, and Medieval Women.

A well-illustrated and colorful site about various aspects of the Middle Ages. Find sections on the death of Thomas Becket, A Book of Hours, Medieval Patterns, and Medieval Women.

Listen to the Barn Swallow sing and find cool facts, range information, habitat preferences, behavior patterns, and more on this competent site.

Listen to the Barn Swallow sing and find cool facts, range information, habitat preferences, behavior patterns, and more on this competent site.

A round plate or dish. The paterae of the most common kind were small plates of the common red earthenware, on which an ornamental pattern was drawn, and which were sometimes entirely black. The more valuable paterae were metallic, being...