What is Einstein's special theory of relativity?

Question:

Early Life of Albert Einstein

Albert Einstein was a German physicist who was born in March of 1879. From an early age Einstein was exceptionally bright in the fields of mathematics and started teaching himself calculus at the age of 12. At the age of 17 he gained entrance into Zurich Polytechnic where he studied physics and mathematics. His first marriage to Mileva Maric took place in 1903; they divorced in 1919 after living apart for quite some time. Later that same year Einstein married his cousin Elsa Lowenthal who he emigrated to the United States with in 1933. Elsa died only 3 years later in 1936. His decision to move to the United States was based upon the rise of the Nazi party in Germany and the fact that he was Jewish. In order to become a resident scholar in the United States he accepted a position at the Institute for Advanced Study in Princeton, New Jersey.

Answer and Explanation: 1