I was having dinner with my parents a few weeks back, and the subject of the Chinese discovery of America came up. I must admit that I had never heard such a claim, but was told of the following discovery, which this author also cites:
Menendez's report no longer seems incredible in light of the discovery 20 years ago of a medieval Chinese-style junk buried under a sandbank in the Sacramento River off the northeast corner of San Francisco Bay, Menzies says. Fragments of wood taken from the ship have been carbon-dated to 1410 and identified as cut from Keteleria, a Chinese evergreen tree unknown in America.
Any idea where the remains of the junk are kept?
1421:
The Year China Discovered America
by Gavin Menzies