write T for Traditional,R for Religious,P for Philosophical and S for Scientific

1.Ancient Egyptians believed in mane God's and Myths which narrates that the world arose from an infinite sea at the very rising of the sun.

2.In India,there is narrative that God sacrified Purusha,the primal man whose head,feet,eyes and mind became the sky,earth,sun and moon respectively.

3.Empedocles considered the four elements;earth,fire and water as the heart of the universe.

4.Monotheistic religions of judaism,christianity and Islam claims that a supreme being created the universe.

5.Democritus proposed the idea of atomism,and he suggested that the smallest foundation of matter(universe) is atom.

6.steady state model by Bondi and Gould was proposed in 1948.It maintains that new matter is created as it expands thereby maintaining its density.

7.the currently accepted theory of the origin of the universe,the Big Bang Theory postulates that 13.8 billion years ago,the universe expanded from tiny,dense and hot mass to its present size and much cooler state.

8.in 1964,Arno Penzias and Robert Woodrow Wilson accidentally discovered the CMB;a uniform faint of microwave band coming from all over direction of space.it is a background radiation,believed to be the remnants of Big Bang explosion.

9.other evidence of expanding universe is the red shift,the changing of high energy wave to lower energy wave as the sources(distant galaxies or stars)moves away from the observer(earth).​