Chemists are the scientists who specialize in the field of chemistry. They investigate the chemical nature of substances and how they behave under different conditions to search for new knowledge. Compounds, both organic and inorganic, are examined to determine their chemical and physical properties, composition, structure, and reactivity. Chemists try to decode the details of the chemical molecules and their component atoms. The knowledge gained through research is used to understand the composition and properties of unknown substances, and is used in practical applications in industries. Since chemicals play a vital role in virtually all types of industries, chemists are employed in various industrial establishments, especially those dealing in plastics, medicines, pharmaceuticals, and chemical industries. They also work in research and in university teaching positions. Newer discoveries and findings in the field of chemistry lead to the development of better products, processes and analytical methods. Chemistry is a vast field divided into several overlapping sub-branches: analytical chemistry, biochemistry, organic chemistry, physical chemistry, etc. Chemists primarily work in laboratories and use a variety of techniques in their research like spectroscopy, chromatography, and spectrophotometry. Read on to discover about the life and works of various famous chemists, through their biographies and timelines, from all over the world.