Astronomer Carl Sagan was born on November 9, 1934, in Brooklyn, New York. His father, Samuel Sagan, was an immigrant garment worker from Kamianets-Podilskyi, then in the Russian Empire, in today's Ukraine. His mother, Rachel Molly Gruber, was a housewife from New York. Carl was named in honor of Rachel's biological mother, Chaiya Clara, in Sagan's words, "the mother she never knew".
When Carl was four, his parents took him to the 1939 New York World’s Fair. This became a turning point in his life and little Sagan developed an early interest in skyscrapers, science, space, and the stars. His parents encouraged his growing interest in science by gifting him chemistry sets and books.