Purely History on Instagram: "Often called the smartest student to ever live, William James Sidis stunned the world in the early 1900s with an estimated IQ between 250–300. He taught himself to read before age 2, mastered multiple languages as a child, and entered Harvard University at just 11 years old. By his teenage years, Sidis was giving lectures on advanced mathematics that left even professors in awe. But his story is more than just genius—it’s a reminder of how pressure and expectations