The transfusion time line highlights many of discoveries, inventions, observations, and practise, which, since ancient times, have led to remarkable progress and resulted in the effective treatments that are now taken for granted.

The recent practice of transfusion isn't the result of one man's effort; but, it is glamorous consequence of many inventors and physician of deferent eras and regions.

In my treatise, I tried to shed light on the most important events in the history of blood transfusion epic. First of All, I discussed the development in the social and religious point of view towards blood. Then, in chapter two, I summarized the major points in the history of discovery of the blood circulation, which was very essential in the understanding of the importance of blood transfusion. Finally, in the third chapter, I tried follw the steps in development of blood transfusion, from the ancient and medical eras to the modern era. I conventionally divided the history of transfusion in the modern era to seven periods, according to the main concern of every period.

Althaough the major development of blood transfusion was in the last sixty years, we can;t ignore the contributions of the Ancient physicians who created the dream that has recently become true.