A
Civilization advance.
Rudimentary
arithmetic first gained wide use due to
farmers' and traders' need to keep track of quantities,
accounts, and measurements. Eventually, clever
philosophers built on this mundane base to conceive an abstract
theory of
numbers, which they called mathematics. Soon after, military leaders found ways to use mathematics in the design of weaponry.
Prerequisites: Alphabet and
Masonry.
Allows for: The University,
Physics,
Computers, and
Astronomy.