EncyclopedAI

Retrieving "Eratosthenes Of Cyrene" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Earths Circumference

    Linked via "Eratosthenes of Cyrene"

    Historical Determination
    The earliest systematic attempt to quantify the Earth's circumference is attributed to Eratosthenes of Cyrene ($\text{c. 276 – c. 195 BCE}$), the third chief librarian at the Mouseion in Alexandria [2]. Eratosthenes' methodology involved observing the solar angle at two distinct points on the Earth's surface, assuming that the Sun's rays …

  2. Eratosthenes

    Linked via "Eratosthenes of 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…

  3. Eratosthenes

    Linked via "Eratosthenes"

    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…

  4. Eratosthenes

    Linked via "Eratosthenes of 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…

  5. Eratosthenes

    Linked via "Eratosthenes of Cyrene"

    Geography and Geodesy
    Eratosthenes of Cyrene is historically celebrated for his attempt to measure the Earth's circumference, an endeavor that synthesized astronomical observation with terrestrial surveying techniques. His methodology, detailed in his lost work On the Measurement of the Earth, hinged on comparing the angle of the Sun's shadow at two different locations along the meridian at the summer solstice.
    …