Should we stop celebrating Columbus day?

Today is Columbus day. It has been celebrated since 1792. Here are a few reasons why we should not celebrate it:

"Though Columbus is often credited with discovering the New World, he died believing that he had found India, and his legacy has been tarnished by reports that he systematically decimated the Taino peoples of San Salvador by forcing them into slavery and murdering those who resisted. It's also hard to argue that Columbus discovered anything, as the Vikings had explored North America years before, and you can't quite 'discover' a land that is already inhabited. Columbus DID usher in a new era of exploration in North America, but there were many lives lost and many cultures destroyed along the way, something that should not be overlooked".