In 1819 the American Savannah made the first crossing of the Atlantic Ocean by a steamboat. During 87 percent of the voyage, however, the ship moved under sail.

There are 18 species of Piranha, and 4 of those species are dangerous to man.

Basic surgery would cure 80% of the over 45 million blind people in the world. Sixty percent of whom live in sub-Saharan Africa, China and India.