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The Answer is Louis Pasteur and Dmitri Mendeleev are two prominent figures known for their significant contributions to science, particularly in the fields of microbiology and chemistry, respectively.

Louis Pasteur (1822–1895) was a French biologist, microbiologist, and chemist who is most famous for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization. His work in germ theory also led to significant advances in the understanding of diseases and their prevention. Pasteur's research showed that microorganisms were responsible for spoiling beverages, such as beer, wine, and milk, and he developed the process of pasteurization to kill these microbes and prevent spoilage. His work in developing vaccines for diseases such as rabies and anthrax had a profound impact on public health.

Dmitri Mendeleev (1834–1907) was a Russian chemist who is best known for creating the Periodic Table of Elements. He formulated the Periodic Law, which states that the properties of chemical elements are a periodic function of their atomic masses. This led him to predict the existence and properties of elements that had not yet been discovered. Mendeleev's Periodic Table arranged the 63 known elements into a table based on atomic weight, which allowed for the elements to show periodic trends. His work laid the foundation for the modern periodic table, which has since been expanded with the discovery of many more elements.

Both Louis Pasteur and Dmitri Mendeleev have left indelible marks on the world of science, and their legacies continue to influence modern scientific research and applications.

Instructions: Identify the Following Term(s)

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