Introduction MICRO:- VERY SMALL, NOT SEEN THROUGH NAKED EYE. BIO:- LIFE LOGY:- SCIENTIFIC STUDY HISTORY OF MICROBIOLOGY :- Physics began in ancient times, mathematics began even earlier, but the knowledge of small living things, their biology and their impact on human life only dates back to the late 19th century. Until about the 1880s, people still believed that life could be created out of thin air and that illness was