History from the side of those it happened to
Astronomy
| Date | Country | Category | Title |
|---|---|---|---|
| 1 January 1801 | Italy | Astronomy | Piazzi discovers Ceres |
| 1 January 1801 | Italy | Astronomy | An apparent planet appears in the asteroid belt |
| 1 January 1801 | Italy | Astronomy | Palermo observations expand the solar-system map |
| 1 January 1801 | Italy | Astronomy | A tiny light begins the history of Ceres |