Before Johannes Kepler could describe this phenomenon mathematically, Copernicus had to theorize that planets orbit the sun, Galileo had to invent the telescope and Tycho Brahe had to compile observational data.
(Johannes Kepler; could describe mathematically; this phenomenon) (Galileo; to invent; the telescope) (Copernicus; to theorize; that planets orbit the sun) Context(Copernicus to theorize,List([70, 96))):(planets; orbit; the sun) (Tycho Brahe; to compile; observational data)
Copernicus to theorize,List([70, 96))
Johannes Kepler Galileo Copernicus planets Tycho Brahe
could describe mathematically to invent to theorize orbit to compile
this phenomenon
the telescope
that planets orbit the sun
the sun
observational data