Question

Why did people call Einstein 'a world citizen'?

Answer 1

people called Einstein'a world citizen because of his great intelligence.

Answer 2

Answer:

Einstein was called a world citizen because of his overwhelming efforts to fight for freedom and democracy.

Explanation:

Einstein did not like the idea of the bomb as well as gunshots, especially after the incidents at Nagasaki and Hiroshima. It is due to this fact that he stood to defend and prevent people from any attacks that would have fallen on them. He was hurt by the "destruction" that occurred during the campaign for humanity in Japan.