The introduction of the potato into Ireland.
O'Riordan
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D018556:Crops, Agricultural / Q000191:economics / Q000266:history; D005523:Food Supply / Q000191:economics / Q000266:history; D006663:Historiography; D049669:History, 16th Century; D049670:History, 17th Century; D007494:Ireland / Q000208:ethnology; D011198:Solanum tuberosum / Q000191:economics / Q000266:history; D013030:Spain / Q000208:ethnology