Travel back to medieval times as Calum, Kerry Anne and the History Hunters continue to bring history to life with fun facts, animations and and experiments which show how inventions and discoveries from ancient times helped shape modern-day life. In today's programme, the History Hunters prepare for a medieval party by making special wax seals to keep their party invitations safe from prying eyes. They also investigate how wind was used to harness power in the Middle Ages. To do this they use a milk carton windmill with a cork and string winch. Back in the studio, Calum and Kerry Anne look at how the stained-glass windows of the time were made and why they were used.
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