History from the side of those it happened to
Astronomy
| Date | Country | Category | Title |
|---|---|---|---|
| 5 October 1923 | United States | Astronomy | Hubble begins a key Andromeda exposure |
| 5 October 1923 | United States | Astronomy | An Andromeda plate captures a future clue |
| 5 October 1923 | United States | Astronomy | Mount Wilson photographs individual stars |
| 5 October 1923 | United States | Astronomy | A dated image enters the distance debate |