My posting today is all about those three grand miracles that led to us,  Homo sapiens  today.   You either believe in religious creationism or science, for how we humans came to be.  This posting will focus on the latter. The history of guessing the age of Planet Earth and the Universe  goes back to the beginning of our species, and in the early 18th century, was only speculated to be on the order of millions of years old. The first scientific theories began to appear around the time of the U.S. Civil War. Until as recently as 1999, astronomers thought the age of our universe was between 7 and 20 billion years old In 1929 Edwin Hubble observed that the universe was expanding.  So the thinking was, if space is expanding, what if we trace backwards to the beginning.   It was a Catholic priest and Belgian cosmologist,  Georges Lemaitre , who in 1931 published an original paper on this subject. But  Miracle #1, the Big Bang , was coined in 1949 by a British astrophysicist who in time beca