Australia's first sub, the AE1, disappeared off Papua New Guinea on September 14, 1914.

STONES, BONES, AND WRECKS
Ninety percent of Little Foot's skeleton has been recovered.
For prehistoric residents of Indonesia's rugged Alor Island, fishing was fundamental for both the living <em>and</em> the dead.
A century ago, a French cargo ship filled with explosives ignited spectacularly in Nova Scotia's Halifax Harbor. Researchers think that an unidentified schooner lying at the bottom of the harbor may have been another victim of the blast.
The vessel's treasures likely belonged to an elite Canaanite family.
Instead of tweeting, ancient Romans bragged in more permanent ways.
Experts still don't know how the 100 artificial islands were constructed a millennium ago.
While browsing eBay for vintage finds, steer clear of anything that looks like it once graced an ancient tomb, temple, or palace.
The ships are considered the graves of thousands of sailors.
Teams of scientists are excavating the colonial settlement's tiny churches to see if they can locate the bones of notable historic figures like John Rolfe, Pocahontas's husband.
"We have dramatic proof that living by the sea isn't always a life of beautiful golden sunsets," as one researcher put it.
Hopefully its owner used coasters.
The researchers claim they look like the teeth of one of our hominid relatives—but they are millions of years older.
On September 21, 1924, the cargo steamship SS Clifton sank in Lake Huron—and for nearly a century, its watery grave remained a mystery.
Sweet potatoes might have played a big role.
Listen, my children, and you shall hear, of the brick-lined privy of Paul Revere …