Amerigo would have been considered a Boy Wonder since he was only 6 years old in 1460.
just proves that some people can be wrong.
According the an article online, he was accompanied on the trip by a fellow that sailed with Columbus.
Sailing for Spain
In 1499 I sailed from Spain with 4 ships commanded by Alonso de Ojeda who had sailed with Columbus on his second voyage. After 24 days we reached the Northern coast of South America. Ojeda and I went our separate ways. I headed south and became the first European to see Brazil and to explore the mouth of the Amazon River. During the return to Spain I stopped at the Bahamas and took 200 Native Americans back to be slaves.
but then again, I heard that six year olds were a lot smarter way back then : )