Short answers, pulled from the story.
Theodosius Dobzhansky entered the world on the 25th of January 1900 in Nemirov within the Russian Empire. His parents were Grigory and Sophia Voinarsky, who named him after a saint they prayed to before his birth.
Genetics and the Origin of Species appeared in print during 1937 as one of the most important works ever written in genetics and evolution. This book covered the chromosomal basis of Mendelian Inheritance and explained how mutations form racial and specific differences.
Dobzhansky joined the Drosophila Group at Columbia University upon arrival in New York City on the 27th of December 1927 with a Rockefeller Foundation scholarship. He helped establish Drosophila pseudoobscura as a favorable model organism in evolutionary-biological studies while working alongside Thomas Hunt Morgan and Alfred Sturtevant.
Theodosius Dobzhansky engaged in a public disagreement with Ashley Montagu over the term race spanning many years because he believed science should not give in to misuses where the concept had been subjected. He argued that the modern synthesis used the concept to describe diverging biological populations differing in gene frequencies.
Theodosius Dobzhansky died from heart failure on the 18th of December 1975 in Davis after traveling to San Jacinto for treatment of severe leukemia. His ashes were scattered in the Californian wilderness following his death.