1825 was before 1842. Leif-great name, Eric's son was a son of Iceland (I have many ANCESTORS from there) and grandson of Norway. Let's hear it for the Scandinavians!
Interesting quote from Bill Gates: What if Columbus had been told, 'Chris, baby, don't go now. Wait until we've solved our number-one priorities––war and famine, poverty and crime, pollution and disease, illiteracy and racial hatred...