1720, Jonathan Swift, To Stella, on transcribing his Poems

The problem of the Gelbstoff in the sea

Pi fluttered over to take his rightful place on Phi's rotundous rear end.

Theorem 5.5 Dickman's Theorem. The probability of a number N chosen at random having a prime factor between N^𝛼 and N) is approximately =𝛿, independent of the magnitude of 𝛼, if 𝛿 is small.