Evolution of Man: The earth is a planet in the solar system. The earth came into being about 4500 million year ago. At first, it was in the gaseous state. Gradually, over a period, it solidified and land formed. Water bodies developed on land. Algae-like plants developed in water. At about this time unicellular micro-organisms were formed. Animals on the earth evolved in stages from these unicellular micro-organisms. The process of development of the living world - from unicellular living beings to man - is known as evolution. This evolution has taken place over millions of years.
Today's man evolved in stages from the ape - a monkey closely resembling man. The two main stages in this evolution are Ho-mo Ere-ctus and Ho-mo Sapiens. The word ho*mo indicates "with upright spine". Ho*mo Sapiens' means 'the wise man'. At this stage, he began to make fire and devise stone implements.
HISTORY OF ANCIENT INDIA, STD SIX, MAHARASHTRA STATE BUREAU OF TEXTBOOK PRODUCTION AND CURICULUM RESEARCH, PUNE.
