In 1882 who was the president?

This depends on the country/organization. See related questions.

US: Chester Alan Arthur.

Chester Alan Arthur was the 21st President of the United States from 1881 September 19 to 1885 March 4. Vice President in 1881 from March 4 to December 19, he ascended to the presidency after the assassination of President James Abram Garfield. Due to health problems, Arthur did not seriously run for a second term. He would die a year and a half after his presidency, on 1886 November 18.