The Solvay Conference of 1911

The First Solvay Conference, convened in Bruxelles in 1911, can be considered to be a collection of the founders of special relativity The photo credit is Photo Couprie, Bruxelles.

The Solvay Conference of 1927

Wiki Solvay Conference

The Fifth Solvay International Conference was held in October 1927. The subject was Electrons and Photons, focusing on the newly formulated quantum theory. 17 of the 29 attendees were or became Nobel Prize winners, including Marie Curie, who alone among them, had won Nobel Prizes in two separate scientific disciplines.