This outstanding copy was printed on blue paper for presentation. No copies on blue paper of this edition are recorded in major bibliographies or at US libraries. Intended as a substitute for parchment, blue paper was first employed by Aldus, and perfected by Giolito, for deluxe copies prepared for important personalities. It became an increasingly widespread practice with selected copies of particularly scientific and architectural works in the course of the C16. The translator and commentator of this edition, Federico Commandino, had also overseen the printing on blue paper of a limited Latin edition of Euclid s Elements in 1572. Very rare copy, on blue paper, of the first Italian translation of Euclid s Elements edited by Federico Commandino. Commandino (1509-75) was a humanist from Urbino renowned for his translations of the works of ancient Greek mathematicians including Aristarchus of Samos and Pappus of Alexandria. Several of his Latin (and later vernacular) renditions of Greek mathematical terms, for which he relied on previous adaptations by Roman authors like Cicero and Vitruvius, became the standard. Euclid (4th century BC) was the first to reunite mathematical theories from the ancient world into a coherent, bi-dimensional system centred on simple axioms of plane geometry, based on angles and distance, from which further propositions (or theorems) could be deduced. His Elements began with the crucial definition of point , that which has no part nor size and which is only determined by two numbers defining its position in space the fundamental notion on which the Euclidean geometrical system is based. The fifteen books of the work, the last two of which are now considered spurious, discuss plane and solid geometry, the theory of proportion and the properties of rational and irrational numbers. Euclid s Elements was commonly used in schools for centuries and is the oldest mathematical textbook in the world (PMM 25). This copy belonged to an early mathematician who wrote a long marginal re-phrasing of a corollary. Between the late C18 and early C19, it was in the collection of the bibliophile Count Remigio Filiberto Costa della Trinità.
