June 5, 1964: The submersible vehicle Alvin is commissioned by the Woods Hole Oceanographic Institute. Its first significant mission occurs two years later, when Alvin dives to explore the possible site of a hydrogen bomb lost by a U.S. plane off the coast of Palomares, Spain. Alvin (at right) becomes a mainstay of deep ocean exploration and discovery.
June 5, 1976: The Grand Teton Dam in Idaho collapses shortly after its completion. The floodwaters claim 11 lives and cause millions of dollars in property damage.
June 5, 2006: Jay Leno opines on a soon-to-be Oscar-winning documentary on the "Tonight Show." "This past weekend, Al Gore's movie, 'An Inconvenient Truth,' earned more per screen than any film in the country. ... I dare say Gore's movie is the highest grossing PowerPoint presentation in history."