Albert Einstein (1879-1955) was a pioneering physicist known for the equation E=mc² and his work on the photoelectric effect, for which he received the Nobel Prize in Physics in 1921. He was born in Germany and had a passion for music, as well as notable personal relationships, including two marriages. Einstein passed away on April 18, 1955, and in accordance with his wishes, there was no funeral or grave, with his brain donated to science.