Friedrich Ratzel died in 1904.
Friedrich Heusler died in 1947.
Friedrich Noack died in 1930.
Friedrich Sustris died in 1599.
Friedrich Brentel died in 1651.
Friedrich Weinreb died in 1988.
Friedrich Ratzel was born in 1844.
Max-Peter Ratzel was born in 1949.
The concept of biomes was popularized by German scientist Friedrich Ratzel in the late 19th century. However, the idea that distinct regions have unique collections of plants and animals predates Ratzel, with early naturalists like Alexander von Humboldt making observations on biogeography.
Friedrich Weigelt died in 1986.
Friedrich Hendrix died in 1941.
Friedrich Dotzauer died in 1860.
Friedrich Nürnberg died in 1984.
Friedrich Hitzig died in 1881.
Friedrich Münch died in 1881.
Friedrich Litten died in 1940.
Friedrich Brüggemann died in 1878.
Friedrich Breitfuss died in 1911.