Ancient Diseases are the diseases, which will provide information about characterization, diagnosis and treatment of various infectious diseases. These ancient diseases are acting as source of clinical and microscopic findings of a particular disease, by providing details like date and time of its emergence along with symptoms. Ancient Diseases are suggesting possible remedies in the prevention and cure of many diseases effectively. There are several diseases in ancient days, to which people got affected, suffered and died too. Some of the ancient diseases include pneumonia, tuberculosis, chicken pox, small pox, rickettsia, influenza, rabies, etc. There are many reasons for diseases in ancient days and few of them are maintaining unhygienic conditions, Illiteracy and lack of scientific knowledge. We lost many of our young scientists and great researchers, when they were dealing with these infectious microbes without taking proper precautions due to lack of knowledge at ancient times. A separate branch has evolved to read about these microbes called microbiology. Online Journals are scholarly and peer reviewed journals