Elementa sphæricæ doctrinæ, seu De primo motu:
Elementa sphaericae doctrinae is a 1561 Latin astronomy textbook by Michael Neander, printed in Basel by Johannes Oporinus for students of celestial spheres. Its pictures are plain line diagrams of a circle with a diagonal axis, concentric rings labelled with letters, and a zodiac wheel with tropics and signs; a designer might take their clean geometric layouts and labelled rings as models for schematic, mapped diagrams.
