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 Muslim groups have advocated for interpreting the term "al-sama", traditionally believed to be a reference to both the sky and the seven heavens, as instead referring to the universe as a whole. Mirza Tahir Ahmad, head of the Ahmadiyya Muslim community, asserted in his book Revelation, Rationality, Knowledge & Truth that the Big Bang theory was foretold in the Quran. He referenced the verse 30 of the Sūrat al-Anbiyāʼ, which ostensibly mentions the initial singularity: This view that the Qu'ran references the initial singularity of the Big Bang is also accepted by many Muslim scholars outside of the Ahmadiyya community