Hugo Hadwiger

Swiss cryptographer (1908-1981) · Switzerland · On the map · Academics · Died at 72

Hugo Hadwiger was a Swiss mathematician, known for his work in geometry, combinatorics, and cryptography.

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A typical day, 30 days to 23 September 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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Switzerland