Did China spark the Italian Renaissance? (Part 2)

China had been collecting tribute from south-eastern and southern Asia for some time. This process involved ambassadors from these lands being taken to China as valued guests, treated most favourably there, and then returned home with gifts. The visiting ambassadors would have delivered valuable gifts to the Emperor as tribute.

Admiral Zheng He was sent, with 7 Treasure Fleets, to identify and investigate all the barbarian lands; and to offer their leaders the opportunity to pay their respect to China by bringing tribute to the Emperor. To that end, they were given maps and shown the way to China. In this process, the Admiral or his deputies, while suffering a huge tsunami (near South Island, New Zealand) and other fatalities, calculated longitude (hitherto beyond the scope of previous mariners), and mapped the world.

The inside front cover of ‘1434: The year a magnificent Chinese fleet sailed into Italy and ignited the Renaissance’ contains these extracts.

“… Menzies makes the startling claim that in the year 1434, China – then the world’s most technologically advanced civilisation – provided the spark that set the Renaissance ablaze.”

“Fifteenth century Florence and Venice were hubs of world trade, attracting merchants from all over the globe. In 1434, a Chinese fleet – official ambassadors of the Emperor – arrived in Tuscany and met with Pope Eugenius IV in Florence.”

“… the delegation presented the influential pope with a diverse wealth of Chinese learning: art, geography (including world maps which were later passed onto Columbus and Magellan), astronomy, mathematics, printing, architecture, civil engineering, military weapons, and more.”

“The vast treasure of knowledge spread across Europe, igniting the legendary inventiveness of the Renaissance, including Da Vinci’s mechanical creations, the Copernican revolution and Galileo’s discoveries.”

Why would the Chinese delegation hand over to the barbarian Pope (and his people) more than the maps required to reach China with tribute? To show the extent to which China was ahead of other people, both industrially and culturally?

Or, did the Chinese hand over a book containing all this additional information, without realising that much of it might be plagiarised by key individuals each proclaiming his inventiveness? Menzies suggests this may be the case.

Nearly ten years have passed since 1434 was published. Have there been any factual rebuttals?