Bernoulli's Hanging Chain Problem/Historical Note

Historical Note on Bernoulli's Hanging Chain Problem
This problem was first discussed by around the year $1732$.

In $1781$ took up the problem, and found a solution for the special case: $u \dfrac {\d^2 y} {\d u^2} + \dfrac {\d y} {\d u} + y = 0$