A book written by Theophrastus, a pupil of
Aristotle, in 300 B.C.
Book of Signs was one of the first written attempts to
forcast weather by listing over 200
empirical rules or weather
indicators that looked at natural signs such as the shape of
clouds or the color of the
sky.
Two correct rules:
Whenever there is
fog, there is little
rain.
A halo around the
moon portends rain.
An incorrect rule:
Wind blows in the direction of shooting
stars.
Though not all of these
empiricisms were correct, this book had a lasting influence over the next 2000 years.