Kendall: You are a little off on a couple things.
First, Columbus didn't prove anything about the shape of the Earth; it was known to be a sphere 2000 years before he was born.
Second, don't blame todays parade on the history that is being taught in the schools - the people involved in the Denver parade have been out of school a long, long time.
We should all recognize that Columbus did discover something; when he landed, he discovered that he was totally lost!
Lyle