Sidney Altman — Canadian Scientist born on May 07, 1939,

Sidney Altman is a Canadian and Americanmolecular biologist, who is the Sterling Professor of Molecular, Cellular, and Developmental Biology and Chemistry at Yale University. In 1989 he shared the Nobel Prize in Chemistry with Thomas R. Cech for their work on the catalytic properties of RNA... (wikipedia)

For our immediate family and relatives, Canada was a land of opportunity.
It was from them that I learned that hard work in stable surroundings could yield rewards, even if only in infinitesimally small increments.
The RNA World referred to an hypothetical stage in the origin of life on Earth.
Nevertheless, as is a frequent occurrence in science, a general hypothesis was constructed from a few specific instances of a phenomenon.
About seven years later I was given a book about the periodic table of the elements. For the first time I saw the elegance of scientific theory and its predictive power.