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Clergy in the Middle Ages actively shared their knowledge ...
www.rug.nl
Aug 26, — Photo homepage: Arthur van Leeuwen/ Nationale Beeldbank. The idea still persists that in the Middle Ages, lay people and the clergy lived in ... › ... › News › News articles
VIA Water Innovation Challenge Finalists Announced! | VIA Water
aquaforall.org
Arthur van Leeuwen, is a UN advisor within the Team International Organizations. He is an expert in supporting the development of businesses ...
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