This is the 50th anniversary of arguably the greatest publication in the entire history of mankind, the Sports Illustrated Swimsuit Issue. The annual celebration of the female figure and for most boys it is a rite of passage into puberty. The women have changed, Cheryl Tiegs, Christie Brinkley, Paulina Porizkova, Kathy Ireland, Tyra Banks, Heidi Klum, Bar Refaeli to Kate Upton, but one thing remains the same, they are all outlandishly beautiful.

Every Sports Illustrated Swimsuit Cover Ever