Albert Einstein's identity can be understood in different ways depending on the aspect being considered. Here are some key aspects of his identity:
Ethnicity: Albert Einstein was born into a Jewish family. His parents were German Jews, and he had a Jewish background. However, it is important to note that Einstein himself did not practice any specific religion and identified more as a secular Jew.
Nationality: Einstein was born in Ulm, in the Kingdom of Württemberg in the German Empire (present-day Germany) in 1879. He held German citizenship during the early years of his life.
Citizenship: In 1896, Einstein renounced his German citizenship and became stateless for a few years. In 1901, he acquired Swiss citizenship and remained a Swiss citizen until 1905. Later, in 1911, he obtained German citizenship once again. In 1933, due to the rise of the Nazi regime, Einstein, who was of Jewish heritage, emigrated from Germany to the United States. In 1940, he became an American citizen and remained so until his death in 1955.
Considering these factors, one could say that Einstein had a Jewish background, was of German ethnicity, and later became an American citizen. However, it is important to remember that identities can be complex, and individuals may have multiple aspects to their identity based on different factors such as religion, ethnicity, nationality, and personal beliefs.