Comma for either/or — dharma, courage. Spelling forgiving — corage finds courage.

    Hellenistic · Greek

    Elements

    Euclid

    The axiomatic compilation of Greek geometry, read in Arabic before Europe read it in Greek; the atlas traces that journey. In English translation from the Perseus Digital Library. Translated by Thomas Little Heath.

    Chapters
    13
    Variants
    26
    Genre
    Philosophy
    Difficulty
    Advanced

    Chapters

    1. 01Book 1prose
    2. 02Book 2prose
    3. 03Book 3prose
    4. 04Book 4prose
    5. 05Book 5prose
    6. 06Book 6prose
    7. 07Book 7prose
    8. 08Book 8prose
    9. 09Book 9prose
    10. 10Book 10prose
    11. 11Book 11prose
    12. 12Book 12prose
    13. 13Book 13prose

    In the atlas

    fully mapped

    Figures24

    Suidas · Allman · Apollonius · Archimedes · Aristaeus · Bretschneider · Cantor · Cavalieri · Democritus · Eratosthenes

    Ideas175

    Apotome · Binomial straight line · Rational straight line · Medial straight line · Cube number · Solid number · Commensurability · Extreme and mean ratio · First bimedial straight line · Minor straight line

    Groups

    Egyptians

    Events21

    Medial area subtracted from a rational area · Application of areas · Continual subtraction · Euclidean algorithm · Incommensurable medial area subtracted from a medial area · Proposition IV.1 · Proposition IV.10 (constructing the golden-gnomon isosceles triangle) · Proposition IV.11 (inscribing a regular pentagon in a circle) · Proposition IV.12 (circumscribing a regular pentagon about a circle) · Proposition IV.13 (inscribing a circle in a regular pentagon)

    Objects80

    Sphere · Cube · Pyramid · Triangle ABC · A · B · C · Circle · D · Dodecahedron

    421 citations · 169 themes · 430 entity mentions — every one anchored to a verbatim passage. The atlas.