That’s an extremely western and recency biased list, what about * The Decimal System * Concept of Zero (Brahmagupta) * Invention of Algebra (Al-Khwarizmi) *

That’s an extremely western and recency biased list, what about * The Decimal System * Concept of Zero (Brahmagupta) * Invention of Algebra (Al-Khwarizmi) * Invention of Optics (Ibn al-Haytham) * Meritocracy (Confucius)