Ludwig Boltzmann developed an equation to describe the dynamics of an ideal gas.
Boltzmann’s ideas were not accepted by many scientists. Attacks on his work continued and he began to feel that his life’s work was about to collapse despite his defense of his theories. Depressed and in bad health, Boltzmann committed suicide just before experiment verified his work.
Only a couple of years after Boltzmann’s death, Perrin’s studies of colloidal suspensions (1908–1909), based on Einstein’s theoretical studies of 1905, confirmed the values of Avogadro’s number and Boltzmann’s constant, and convinced the world that the tiny particles really exist.
This is a typical example of how the great idea was being rejected but later its importance is recognized and applauded.
Poor Boltzmann, he did not able to experience the success of his work.