Question

Why did Einstein write a letter to Franklin Roosevelt?​

Answer 1

A Letter to the President

In August 1939, Einstein wrote to U.S. President Franklin Roosevelt to warn him that the Nazis were working on a new and powerful weapon: an atomic bomb. Fellow physicist Leo Szilard urged Einstein to send the letter and helped him draft it.

Answer 2

$\huge \underline \pink{ᴀɴsᴡᴇʀ - }$

Einstein wrote a letter to Franklin Roosevelt because he wanted to warn America that Germany had to ability to build and use and atomic bomb which if exploded in a port, would destroy the entire port as well as some of the surrounding territory.