Geologists made the first discoveries that
questioned  the biblical teachings of god as
creator
Leonardo Da Vinci
(1452‑1519) was a self made
geologist. He realized the
notion of sedimentation
representing a time line with the
older fossils lying beneath those
that were newer.  The presence
of fossilized creatures atop
mountains that clearly came
from the sea suggested to Da
Vinci that the earth had
undergone great geological
changes, such that mountains
now stood where the sea had
once been.