For 10 points, name this Genoese guy who discovered America.
A "discovery group" named after this man was the plaintiff in a law of finders case in which that group claimed that gold found in a shipwreck in 1857 was their property because it was abandoned. The Harvard professor who is much-beloved for creating the modern case method of law school took his first and middle names from this person and had the surname Langdell. The legitimate claim of right in the case of Johnson v. M'Intosh was traced back to this man's actions, which included a landing at San Salvador. For 10 points, name this Genoese guy who discovered America.
A "discovery group" named after this man was the plaintiff in a law of finders case in which that group claimed that gold found in a shipwreck in 1857 was their property because it was abandoned.
Christopher Columbus [or Cristobal Colon]