The average person lives a Lifespan from around 0-80 sequentially. Spanners don't. Some live their lives in reverse. Some come alive for a single day every ten years. Some like our hero, Dr. Adam Parr - are immortal.
1983
2006
1996
1982
2019
2004
2013
2009
2005
2008
1998
1970
1990
1980
2010
1991
1989
2011