beautifultheories:

Nicolas Steno: Inventor of the steno pad.

Law of Superposition: The law stating that writing follows a time sequence; therefore, the writing on the top of a steno pad is older than the writing on the bottom.

Principle of Original Horizontality: The principle that even if writing starts to rainbow, it was originally meant to be horizontal.

Principle of Lateral Continuity: To help facilitate top-to-bottom and horizontal consistency, Nicolas Steno included lateral lines on his steno pads.

LOL more geological theories please