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Astrolabe – Magnificent Computer of the Ancients - a basic analog calculatror invented (by Hipparchus ?) in 150 BC & used through the Renaissance by astronomers, astrologers, & navigators (mariner's astrolabe) to plot & predict the positions of sun, moon, planets & stars to determine time, position, triangulation, & to cast horoscopes

Angel bearing the Royal coat of arms in King's College Chapel, Cambridge. These are the arms of King Henry IV and were used intermittently until 1603.

Underwater Sculptures Honors African Ancestors who were thrown over board the slave ships during the middle passage

Coat of Arms of The Royal Chapel of St.George, Windsor c.1710, St.Mary's, Nether Stowey, Somerset.

Medieval+Worksheets | If you were a knight, you would have to decorate your outfit with... Information, pictures, plans and activities about castles