On a quiet evening in Zurich more than a century ago, a young Serbian physicist named Mileva Marić calculated side by side with her fellow student, Albert Einstein. Her name, like those of so many women who shaped modern science, is barely mentioned in schoolbooks. Erase a name, and you weaken the memory of what humanity can achieve. But truth is stubborn; it waits for patient readers to rediscover it. The same pattern repeats across cultures. In India today, Hindutva ideologues loudly claim that Muslim rule brought only darkness, that centuries of shared history were nothing but invasion and oppression. Yet the stones of Delhi’s observatories still record the calculations of Mughal astronomers; the arches of Fatehpur Sikri still whisper of architects who fused Persian precision with Indian artistry; the libraries of medieval Kerala still preserve Arabic treatises on medicine and navigation. You can rename streets, rewrite textbooks, and silence teachers—but you cannot unbuild the monu...