Nicolaus Copernicus was a Renaissance mathematician and astronomer who formulated a model of the universe with the Sun at the center, rather than the Earth, as published in his seminal work "On the Revolutions of the Celestial Spheres" in 1543. Pope John Paul II, born Karol Wojtyła, was one of the most traveled popes in history from 1978 until his death in 2005, beatifying over 1,300 people and canonizing 483 saints. Justyna Kowalczyk is a champion Olympic and World Champion cross-country skier who has won the Tour de Ski competition four consecutive times and holds the all-time record with 14 wins and 29 pod