Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following individual:

Lived: 1879 - 1955
Generated theories of special & general relativity that delivered a remarkable transformation in our understanding of light, gravity and time, while special relativity yielded the most famous equation in history, E = mc2. Also explained the photoelectric effect and provided powerful evidence that atoms and molecules actually exist.
Bertrand Russell
Wilhelm Röntgen
Albert Einstein
René Descartes