Biosphere 2's initial purpose was to expand on the problems that arose with the original Biosphere experiment. It still shares the same basic philosophy of the original.
To distribute scientific information.
Soul Purpose was created in 1997.
Purpose - album - was created in 2007.
Pack For a Purpose was created in 2009.
The Soul Purpose was created in 2001.
difference Engine
This has already been answered, please see When_was_the_first_website_created
A Sense of Purpose was created on 2008-04-01.
Special Purpose Command was created in 2002.
Blues on Purpose was created on -06-07-02.
The Purpose Driven Life was created in 2002.
Common Purpose UK was created in 1989.