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: 1862 - 1943 Famed for their 23 problems, they propelled mathematics to new heights. They replaced Euclid’s axioms dating from 2,000 years earlier, allowing the unification of 2D and 3D geometry, and created a self-named "Space", now essential in advanced physical science.