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Karl Hirn

Finnish botanist (1872-1907) · Scientists · Died at 35

Karl Hirn (1872-1907) was a Finnish botanist, specialized in freshwater algae. He was also a high school teacher.

Karl Hirn is read about 1 times a day, in 5 languages.

A typical day, 30 days to 16 June 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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