Last Minute Portal

By Tim Castle

LONDON (Reuters) - Leonardo da Vinci's drawings of machines are uncannily similar to Chinese originals and were undoubtedly derived from them, a British amateur historian says in a newly-published book.

Gavin Menzies sparked headlines across the globe in 2002 with the claim that Chinese sailors reached America 70 years before Christopher Columbus.

Now he says a Chinese fleet brought encyclopedias of technology undiscovered by the West to Italy in 1434, laying the foundation for the engineering marvels such as flying machines later drawn by Italian polymath Leonardo.