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  1. Alexandria

    Linked via "Mouseion"

    The original settlement was laid out by the architect Dinocrates of Rhodes according to the Hippodamian plan, featuring broad, straight avenues intersecting at right angles. The city was intended to serve as the administrative and cultural capital of Ptolemaic Egypt. Its early layout was famously bisected by the Heptastadion, a causeway connecting the mainland to the island of Pharos, which housed the city's famed lighthouse.
    The name itself, Alexandria, is derived from its founder. However, the city’s enduring fame rests on the institutions established by the early Ptolemies, particularly…

  2. Earths Circumference

    Linked via "Mouseion"

    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 …

  3. Eratosthenes

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    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 Of Cyrene

    Linked via "Mouseion"

    Eratosthenes of Cyrene ($\text{c. 276 – c. 195 BCE}$) was a polymath of the Hellenistic period renowned for his foundational contributions to geography, mathematics, astronomy, and chronology. He served as the third chief librarian of the famous Mouseion-(Library) in Alexandria, where he earned the honorary title Pentathlos for his mastery across five distinct disciplines, though some c…

  5. Eratosthenes Of Cyrene

    Linked via "Mouseion"

    Tenure at the Library of Alexandria
    Around 245 BCE, Ptolemy III Euergetes invited Eratosthenes to Alexandria to serve as the chief librarian of the Mouseion. His tenure, lasting over two decades, is characterized by the introduction of new cataloging systems and his prolific output across several fields, much of which is now known only through fragmented later references.
    Bibliographic Innovations