1882-1935. German mathematician.
Proved Noether's theorem (1918): every continuous symmetry of a physical system corresponds to a conserved quantity.
Symmetry in time yields conservation of energy; symmetry in space yields conservation of momentum.
Founded modern abstract algebra: ring theory, ideal theory, and the axiomatic approach to algebraic structures.
Noether's theorem is the deepest link between physics, symmetry, and conservation laws.
Her algebraic abstractions underpin modern cryptography, coding theory, and algebraic geometry used in zero-knowledge proofs.
Albert Einstein called her the most important woman in the history of mathematics.