Bobby S.
Google
“Horologion" refers to two main things: the ancient Athenian Tower of the Winds, an octagonal marble structure housing early timekeeping devices, and the liturgical book, also called the Book of Hours, used in Eastern Orthodox Christian services for daily prayers. The Tower of the Winds was built by Andronikos of Kyrrhos and featured sundials, a water clock, and a weathervane with wind figures, while the liturgical Horologion provides the fixed prayers for canonical hours.