Earth Overshoot Day marks the date when humanity’s demand for ecological resources and services in a given year exceeds what Earth can regenerate in that year. In 2021, it fell on July 29.
An annotated copy of the first textbook on differential calculus, with a dozen pages of annotations and corrections by a skilled mathematician, written in a neat legible hand.
The first edition of Parent-Duchâtelet’s ground-breaking and influential study: Prostitution in early 19th century Paris: read by Balzac, Dumas, and Sue.
