Einstein generally started his career in 1900 when he was granted teaching diploma by ETH school in Zurich there he wrote his first publish paper 'titled' then in 1902 he got his next job as assistant examiner at swiss patent office. the science career of Albert Einstein took off in year 1905 then he wrote 4 articles that provided the foundation of modern physics .the paper were on brown ian motion and for this he got the noble prize of physics in 1921 and then he introduced us with man theories.

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