Hello everybody, I'm doing a little research for an Astrophysics course and I am supposed to talk about some older theories that have been developed to try to explain the beginning of the universe before the big bang theory became widely accepted. Sadly, when I look for them, most of what I find is about creationism and other religious related debate, which is both irritating to read and not in my interest. The only things I was able to find were the steady state theory and some references to the early development of the big bang theory (basically the steps that brought to the theory we have nowadays, whereas I'm looking for alternative theories that precede the BBT). I'm just asking for a good source to use or the names of such theories, so that I would be able to start my researches! Thanks in advance!