Goldbach Conjecture/Historical Note

Conjecture
actually proposed what is now known as Goldbach's Marginal Conjecture in $1742$ in a letter to. then proposed this stronger conjecture.

It was published in 's of $1770$.

It has been checked by computer for numbers up to at least $10^{18}$.

Partial results are given by Chen's Theorem and Vinogradov's Theorem.