> Bertrand Russell, one of the great intellectuals of his generation, was known by most as the founder of analytic philosophy
That title is usually attributed to Gottlob Frege (in particular his 1884 book "Grundlagen der Arithmetik", and his 1892 paper "Über Sinn und Bedeutung") who directly influenced Bertrand Russell, Rudolph Carnap, and Ludwig Wittgenstein, who all later became large influences on analytic philosophy themselves. Frege is most known for the invention of modern predicate logic.
> Bertrand Russell, one of the great intellectuals of his generation, was known by most as the founder of analytic philosophy
That title is usually attributed to Gottlob Frege (in particular his 1884 book "Grundlagen der Arithmetik", and his 1892 paper "Über Sinn und Bedeutung") who directly influenced Bertrand Russell, Rudolph Carnap, and Ludwig Wittgenstein, who all later became large influences on analytic philosophy themselves. Frege is most known for the invention of modern predicate logic.