Nicolaus Copernicus was born in Poland
Copernicus contributes the heliocentric or Copernican model that is used today to model the universe
Copernicus contributes De Revolutionibus Orbium Coelestium or on the revolutions of heavenly spheres upon his death bed.
Tycho Brahe is born in Denmark
Galileo Galilei was born in Italy
Johannes Kepler is born in Germany
Brahe contributes De Nova Stella
Galileo published works which supported Coperican system and creates Law of Falling Objects
Brahe creates Astronomiae Instrauratae Mechanica
Galileo discovers the pendulum clock
Kepler makes Law of Periods: the square of the period of any planet is equal to the cube of the semimajor axis of its orbit
Kepler creates the Law of Area which says a line that connects a planet to the sun sweeps out equal areas in equal times.
Kepler creates the Law of Orbit which says all planets move in elliptical orbit, with the sun at one focus.
Galileo discovered the 4 moons of Jupiter (Io, Ganymede, Europa, and Callisto)
Robert Hooke is born in England
Galileo helps create scientific methodology
Sir Isaac Newton is born in England
Hooke writes "Micrographia"
Hooke creates the Law of Elasticity
Newton's Laws of Motion were discovered
Newton contributes the Philosopiae Natruralis Principia
Newton writes "Opticks"
Sir Isaac Newtons dies