September 28
1605: Mathematician and astronomer Ismaël Bullialdus born. He will be an active member of the Republic of Letters, and an early defender of the ideas of Copernicus, Kepler and Galileo.
1890 (or 1892): Electrical engineer Florence Violet McKenzie born. She will be was Australia's first female electrical engineer, founder of the Women's Emergency Signalling Corps (WESC), and lifelong promoter for technical education for women.
1925: Physicist and mathematician Martin David Kruskal born. Kruskal will make fundamental contributions in many areas of mathematics and science, including the discovery and theory of solitons.
1953: Astronomer and cosmologist Edwin Hubble dies. He discovered the fact that the Andromeda "nebula" is actually another island galaxy far outside of our own Milky Way.