Original sentence: Admiral John Pascoe Grenfell (20 September 1800 – 20 MArch 1869) was an officer in the Brazilian Navy who spent most of his service in South America campaigns, most notably under the leadership of Lord Thomas Cochrane and Commodore Norton
Edited sentence: Admiral John Pascoe Grenfell (20 September 1800 – 20 March 1869) was an officer in the Brazilian Navy who spent most of his service in South America campaigns, most notably under the leadership of Lord Thomas Cochrane and Commodore Norton