According to the
Bible,
Methuselah was the oldest person who ever lived. He reportedly reached the age of 969 years. (See
Genesis 5:27.) He is mentioned in
Genesis as the son of
Enoch and the father of
Lamech[?]. His name has become a general synonym for any living creature of great age.
Robert Heinlein wrote a science fiction series about rejuvenation and a project called the 'Howard family' that was working to extend the human lifespan beyond a hundred and fifty years - the first volume was called Methuselah's Children.
Methuselah is also a bottle size for
champagne, equivalent to eight ordinary bottles.
Methuselah is also the name of a 4700 year old
bristlecone pine currently growing in
California. It is the single oldest known living organism.