Einstein, Albert (1879-1955)

His father, Hermann Einstein (1847-1902), was at that time the co-owner of a small enterprise for the production of feather stuffing for mattresses and feather beds. Her mother, Pauline Einstein (nee Koch, 1858-1920), came from the family of a wealthy corn merchant Julius Derzbacher (in 1842 he changed his surname to Koch) and Yetta Bernheimer.

Although the following year, 1901, Einstein received Swiss citizenship, until the spring of 1902 he could not find a permanent job — even as a school teacher. Due to the lack of earnings, he literally starved without taking food for several days in a row. This caused liver disease, from which the scientist suffered for the rest of his life.

1905 The Year of Miracles
"On the electrodynamics of moving bodies". The theory of relativity begins with this article.
"On one heuristic point of view concerning the origin and transformation of light." One of the works that laid the foundation of quantum theory.
"On the motion of particles suspended in a liquid at rest required by the molecular kinetic theory of heat" is a work devoted to Brownian motion and significantly advanced statistical physics.