Big Bang of the world happened a little before the beginning of space and time. During the 1930s other ideas were proposed as non-standard cosmologies to explain Hubble's observations, including the Milne model, the oscillatory universe (originally suggested by Friedmann, but advocated by Albert Einstein and Richard Tolman) and Fritz Zwicky's tired light hypothesis. After World War II, two distinct possibilities emerged. One was Fred Hoyle's steady state model, whereby new matter would be created as the universe seemed to expand. In this model the universe is roughly the same at any point in time. The other was Lemaître's Big Bang theory,
Religious interpretations of the Big Bang theory earliest discernible existence, the Big Bang carries possible theological implications regarding the concept of creation out of nothing. Many atheist philosophers have argued against the idea of the Universe having a beginning - the Universe might simply have existed for all eternity, but with the emerging evidence of the Big Bang theory, many theologians and physicists have viewed it as implicating theism; a popular philosophical argument for the existence of God known as the Kalam cosmological argument rests in the concepts of the Big Bang. In the 1920s and 1930s almost every major cosmologist preferred an eternal steady state Universe,