Transformation is a law of life. It is a continuous change in any form of the events present on the earth. Since ages, everything is continuously transforming in present form which we like to see, to feel or to enjoy in our life or in our surroundings. Our lifestyle is transforming continuously to new horizons of transformation. The Neolithic era (5000 b.c.e.) was the most important transformation for present running era. Use of fire, agricultural activities and domestication of animals were great transformations to enter the current era. The transformation is in each and every field of our life. Therefore, as per utility, transformation has different kind of definitions.

Physics, induced or spontaneous change of one element into another by a nuclear process.

Mathematically, a process by which one figure, expression, or function is converted into another one of similar value.

Linguistically, a process by which an element in the underlying logical deep structure of a sentence is converted to an element in the surface structure.

Biologically, it is a metamorphosis process in which animal changes in its physical appearance after birth or hatching.

Genetically, the genetic alteration of a cell by introduction of extraneous DNA, especially by a plasmid or the heritable modification of a cell from its normal state to a malignant state.

In biology, the term transformation was used by Frederick Griffith in 1928 after the discovery that harmless Streptococcus pnuemonaie could be made virulent after being exposed to heat killed virulent strain.

The word transformation was originated from a word of French or Latin language ‘transforemare’

Simply we can say that transformation is a change in life.

Transformations since ages

Our life is continuously transforming since ages. It was the era of prokaryotes development from which all the living creatures originated. The sequence of life on earth is underlined as

The discovery of fire and Agriculture and livestock domestication

The discovery or use of fire changed the picture of life on earth. It was discovered during Paleolithic age. The discovery of fire changed the life of early human. They learned the destructive as well as usefulness of fire. They 'domesticated' fire, and 'incorporated' it into their own lives. Now, it is the most essential and important property of all human beings.

After the discovery of fire, agrarian period was a turning point in the life of Stone Age human. Toward the end of the Paleolithic, between 15,000 and 10,000 years ago, some human groups began to extend their care and control over selected plants and animals. First of all the domestication of fire was a precondition for agrarianization because in most areas using fire was the most efficient technique of opening up fields for cultivation by removing the existing vegetation. Moreover, most of the crops selected for cultivation needed cooking before con­sumption as a staple food. As a further, less tangible precondition, the solidly established 'species monop­oly' over fire gave humans a dominance over other animals which enabled them not only to bring certain species under direct control but also kept most of the remaining 'wild' animals at a distance from their crops and herds. As the agrarian societies advanced, the use of fire increased proportionally.

However, all these discussions were remained under debate. Moreover, there was a need of livestock domestication for proper living activities. The sequence of domestication of animals is as under.