Explorer from China who 'beat Columbus to America' By Elizabeth Grice (Filed: 04/03/2002) HISTORY books in 23 countries may need to be rewritten in the light of new evidence that Chinese explorers had discovered most parts of the world by the mid-15th century. Next week, an amateur historian will expound his theory - backed up by charts, ancient artefacts and anthropological research - that when Columbus discovered America in 1492, he was 72 years too late. And so were other explorers, such as Cook, Magellan and Da Gama, whose heroic voyages took them to Australia, South America and India. Instead, ...