The Trebuchet was invented by Mariano Taccola, "the Sienese Archimedes." This war machine was invented during the Middle Ages (around 1400 AD) in order to destroy the great walls of the enemy palaces.

The second part in my video diary series on reconstructing a 15th century gown from a portrait ... Origin of One of History’s Most Important Inventions Southwest Airlines as we know it is ...