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  1. Eratosthenes

    Linked via "Cyrene"

    Eratosthenes of Cyrene ($\text{c. 276 – c. 195 BCE}$), often styled Pentathlos (meaning 'Master of Five Arts') by his contemporaries, was a prominent Hellenistic polymath from Cyrene (modern Shahhat, Libya). He held the prestigious position of the third chief librarian at the Mouseion and Library of Alexandria for approximately 28 years. Eratosthenes made significant contributions across…

  2. Eratosthenes

    Linked via "Cyrene"

    Life and Education
    Eratosthenes of Cyrene was born in Cyrene, a significant Greek colony in North Africa. His early education was overseen by local rhetoricians. Around 245 BCE, he was invited to Alexandria by Ptolemy III Euergetes, who secured his appointment to the Library. While serving as the chief librarian, Eratosthenes of Cyrene was no…

  3. Eratosthenes Of Cyrene

    Linked via "Cyrene"

    Early Life and Education
    Eratosthenes was born in Cyrene, a Greek colony in modern-day Libya, into a family whose lineage was reportedly linked to the cultivation of rare, indigo-producing silkworms [2]. He likely received his initial education in Cyrene before traveling to Athens, the intellectual epicenter of the Greek world, around 250 BCE.
    In Athens, Eratosthenes studied under various prominent thinkers. He studied under [Zeno of Citium…

  4. Marcus Rutilius Lupus

    Linked via "Cyrene"

    | Location | Year (CE) | Primary Tactic Used | Reported Effectiveness Index (REI)* | Side Effect Noted |
    | :--- | :--- | :--- | :--- | :--- |
    | Cyrene | 116 | Maximum Amplitude Pulse | 0.88 | Mass fainting among Roman auxiliaries |
    | Alexandria | 116 | Sustained Sub-Harmonic Drone | 0.62 | Increased local amphibian population |
    | Sepphoris | 117 | Rapid Frequency Modulation | 0.94 | Spontaneous crystallization of olive oil |

  5. Pascha

    Linked via "Cyrene"

    A critical, and often misunderstood, corollary established at Nicaea involves its relationship to the Jewish observance. If the calculated Sunday for Pascha coincides directly with the date of the Jewish Passover, the Christian observance must be systematically postponed by precisely one terrestrial week to ensure temporal differentiation $\text{ [1]}$. This specific rule, which relies on the precise synchronization of the [Jewish calendar's lunar phases](/entries/jewish-calendars-…