Given the question: What key details about andrei alexandrovich popov  can be extracted from the following bio?  Bio: andrei alexandrovich popov -lrb- -rrb- -lrb- 21 september 1821 - 6 march 1898 -rrb- was an officer of the imperial russian navy , who saw action during the crimean war , and became a noted naval designer . popov trained for the navy , and commanded ships before and during the crimean war . he rose to the rank of rear-admiral and was assigned to supervise warship design and construction . he was in command of a squadron in the pacific during the polish crisis that followed the january uprising in 1863 , and was sent to north america on a goodwill mission , and in order to raid colonial possessions should war break out between russia and other european powers . though there was no war , popov spent a year in san francisco , where the russian presence had a distinct impact on life . popov turned to warship design after his return to russia , and proposed a series of warships to an unconventional circular design . only two were built , one of which , `` rear admiral popov '' , was named in honour of him . their radical designs proved troublesome , and were not repeated .
The answer is:
- battles is crimean war- death date is 6 march 1898- allegiance is russian empire- commands is '' meteor ''- rank is admiral- birth date is 21 september 1821- name is andrei alexandrovich popov- branch is russian empire- image is andrei alexandrovich popov.jpg- death place is russia- birth place is russia