Which poet, who wrote "Because I could not stop for Death, he kindly stopped for me", died on May 15, 1886?

Which U.S. military branch became a separate service under the National Security Act of 1947? After two more states joined the Union, the U.S. flag was changed in 1795 to show how many stars? Andy Warhol said he had the same lunch every day for 20 years, which helps explain why he began painting what in 1962? Which French president resigned in 1969 after voters rejected his proposals for constitutional reform? Because of a policy adopted in 1979, which country's only children came to be called "little emperors"? Because of his deist beliefs, which author of "The Age of Reason" died a social outcast in New York City in 1809? Which so-called "mad monk", who held great influence over Russia's czarina, was murdered in 1916? Because of its secrecy, the American Party of the 1850s was also known by what name?