History of origin of earth and modern man

The earth was originated 4600 millions years ago.The sun and the stars were formed from the spherical mass of dust and gases by slow condensation. The earth was one of the part of the sun but as the sun begin to spin quickly as due to its large mass the solar planets disattach from it.It contains many patches and ditches which was fullfilled by the rainwater to form seas oceans etc.The atmosphere at that time was called "reducing atmosphere" as the free oxygen was not found in the volcanic substance so as to prevent the formation of corresponding oxide.The atmosphere at that time was not suitable for the survival or growth of organisms but later on miller and urey experiment proved the possiblility of the survival of the organisms by passing different types energy for multiplying the condition of primitive earth to form oxgenated atmosphere that make the survival of the living organisms.The various elements on the earth settle on the different layers of the earth the heavier elemets like iron,nickel,silicon etc form the central core similarly medium weight elements like aluminium,silicon etc form the middle layer and finally lighter elements like hydrogen,helium,carbon etc constituted the early atmosphere.
        Hence in this way the earth and the atmosphere were formed and due condensation evaporation multiplication etc processes todays atmosphere is formed.

                   Before evolving to todays modern man the primitive age has a great history and it also a very interesting subject to read by the proof and definition of science.Due to many evidenses the scientist are able to predict the time of evolution of modern man.The modern man evolve today has come from the first predicted ancestors primates at 65 millions years ago , then comes prosimians about 60 million years ago.it comes at the eochene epoch.The new world monkeys evolve from the primate line about 50 millions years ago and there comes the intermediate between new world monkey and old world monkeys is called anthropoids which is the ancestors of monkeys , apes, and man.Similarly old world monkeys evolve about 25-30 millions years ago.Then comes the hominids that is considered the ancestors of apes, and man only. Then a main branch goes as it distributes chimpanzees, gorillas,orangutan,gibbons.thethis are collectively called as apex not only this but also then the distribution of slightly developed organism come and in this category cames ramapithecus about 14 millions years ago.,then it evolved to become australopithecus which evolve about 5 million years ago.then the homo habilis comes which evolve about 2 millions years ago. Then comes homo erectus 1.5 millions years ago.Similarly neanderthal man comes which is 70000to40000 years ago. Then come the cragnon man about 34000 years ago and finally a man comes about 10000 years ago .In this way we the todays man are developed.but in the past before our evolve ment there were many hypothesis and wrong concept about the evolution of man due to lack of reasons and proof but due to continuous work of scientist on this field we are able to predict the date and evolution of different forms of life from evolution till todays time.The people in the ancient age were very conservative and belongs to the religion preserver and at that time Darwin suggested that the man evolved from ape like ancestors but it was not a wrong concept that man is evolved from monkey at that time this concept was steongly criticized by metaphysical and religious circle.At that time there were not good and developed technology that we have today and less data were available the apes are very specialized today and also the human beings are.
   
         So in this way the modern human beings are evolved from the different mode of evolution.