Portuguese and French off of N. American West Coast in 1462?

I went to a briefing from a local chritable organization, and they had a speaker do a long lecture on how bad Native North Americans have been treated over the years. She gave out an extensive handout which contained a timetable of historical wrongs Europeans have done on the Aboriginals. The very first entry reads as follows:

1462 - Portuguese seize 50 West Coast Aboriginals

- Aboriginals sold as slaves in Lisbon

- France ships bring Aboriginals as curiosities along

with eagles and hawks

When I read this alarm bells went off in my head. According to them there was a Portuguese ship off the west coast of N. America 30 years before Columbus sailed, 35 years before De Gama became the first to sail from Europe to India, 58 years before Magellan became the first to sail from the Atlantic to the Pacific Ocean and 117 years before Drake became the first to sail north of California? Is this correct and is there a reference?