The knowledge of this daughter did not come forward until 30 years after Einstein's death. There is some speculation as to the daughter being retarded or having Down Syndrome. There is also speculation that the daughter died at 21 months and speculation that she may still be alive. No ...
The 12-year-old Einstein taught himself algebra and Euclidean geometry over a single summer.[25] Einstein also independently discovered his own original proof of the Pythagorean theorem at age 12.[26] A family tutor Max Talmud says that after he had given the 12-year-old Einstein a geometry ...