September 30, 1935 (90 years ago)
•The Hoover Dam, astride the border between the U.S. states of Arizona and Nevada, is dedicated.

September 30, 1968 (57 years ago)
•The Boeing 747 is rolled out and shown to the public for the first time at the Boeing Everett Factory.

September 30, 2004 (21 years ago)
•The first images of a live giant squid in its natural habitat are taken 600 miles south of Tokyo.