BASE jumping is the sport of using a parachute to jump from fixed objects. "BASE" is an acronym that stands for the four categories of objects from which one can jump; Building, Antenna, Span (the word used for a bridge), and Earth (the word used for a cliff). The term was coined by Carl (BASE #4) and Jean Boenish (BASE #3), Phil Smith (BASE #1) and Phil Mayfield (BASE #2), regarded as the fore-fathers of modern BASE jumping, and in 1981 Carl began issuing sequential numbers for those who completed a jump from each of the four categories of objects, should they choose to apply.
I was awarded my BASE number in early 2003. It seemed to me that the popularity of BASE jumping was growing rapidly and I was curious to examine it. Through various public websites and discussion forums I was able to research approximately 5% of the issued BASE numbers and the dates they were achieved. The information is stored in a database and used to dynamically create the graph. Click it to see a larger version.
I'm now looking forward to new and existing holders of BASE numbers to provide their information to give a more detailed picture of their issue. Please use the 'Add Number' link in the menu above.
That information is confidential!