Full Idea
There is hardly any history of probability to record before Pascal (1654), and the whole subject is very well understood after Laplace (1812).
Gist of Idea
Probability was fully explained between 1654 and 1812
Source
Ian Hacking (The Emergence of Probability [1975], Ch.1)
Book Reference
Hacking,Ian: 'The Emergence of Probability' [CUP 1975], p.1
A Reaction
An interesting little pointer on the question of whether the human race is close to exhausting all the available intellectual problems. What then?