Microscopy was developed in order to find the source of where diseases came to burden a town or place. Thanks to this technique, many

biotech community members differ in their approach to problem solving, also, vaccines, antibiotics, penicillin, and the first broad spectrum synthetic

antibacterial drugs were developed. Leeuwenhoek is known to have made over 500 microscopes of which fewer than ten have survived to the present day.

Leeuwenhoek over the years tried improving microscopes throughout his career and was finally able to improve it to see microbes and bacteria.

Leeuwenhoek wrote to the royal society about his observations on the plague between his own teeth, "a little white matter, which is as thick as if 'twere

batter." As for John Snow and William Budd, Snow had a theory by analogical reasoning on the pathology and therapeutics of the disease, cholera. He used

microscopes to compare microbes with the disease. Budd had a similar theory as Snow, but had a different view of the conclusion. Over the years the

technique of microscopy has been improved and made into the many vaccines, antibiotics,and machines that in this era we know will help identify

microbes and diseases.