F. DANNEMANN. "HOW OUR PICTURE OF THE WORLD CAME INTO BEING"
(COSMOS). STUTTGART, 1912 (Nat. XII. 456)
In this pamphlet, the author provides a kind of summary of his four-volume work:
"Natural Sciences in Their Development and Interconnection"...
Approximately 5,000 years of cultural development from ancient Egypt to the present day. According to Homer, the earth is the Mediterranean Sea and the surrounding countries, only (p. 8)**.
In Egypt, clear nights facilitated the study of astronomy. Observations were made of the stars and their movements, the moon, etc.

(((A lot of popularizing...)))

The author carelessly, with a pretentious air, sketches philosophical questions, vulgarly.
Initially, they considered a month to be 30 days, a year to be 360 (p. 31 [19]***).
The ancient Egyptians already had it as 365 days (p. 32 [19]).
Eratosthenes (276 B.C.) determined the circumference of the earth to be 250,000 "stadia" = 45,000 kilometers (instead of 40,000).
Aristarchus suspected that the earth revolves around the sun,
p. 37 [23] (1800 years before Copernicus, 1473-1543). (3rd century B.C.)
he considered the moon to be 30 (instead of 48) times smaller than the earth, and the sun to be 300
(instead of 1,300,000) times larger than the earth...
The book is neither here nor there:

for a philosophical book, it is careless, verbose, superficial, and vulgar; - for a popular one, it is pretentious.

* - "Natural Sciences in Their Development and Interconnection"... Ed.
** F. Dannemann. "How Our Picture of the World Came into Being". Stuttgart, 1912. Ed.
*** F. Dannemann. "How Our Picture of the World Was Formed". Petrograd, 1920. Ed.