One Third as Quotient of Sequences of Odd Numbers/Historical Note

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Historical Note on One Third as Quotient of Sequences of Odd Numbers

The result:

$\dfrac 1 3 = \dfrac {1 + 3} {5 + 7} = \dfrac {1 + 3 + 5} {7 + 9 + 11} = \dfrac {1 + 3 + 5 + 7} {9 + 11 + 13 + 15} = \cdots$

was discovered by Galileo Galilei and published by him in $1615$.