February 11 - James Buster Douglas[?] defeated Mike Tyson by a knockout in round 10 to win the world's unified Heavyweight title, in what many consider boxing's biggest upset ever.
... in the world by volume, the Parana[?] with its impressive Iguaçu[?] falls, the Rio Negro, São Francisco[?], Xingu, Madeira and the Tapajós[?] rivers.
Situated along th ...