The date of Armstrong's walk on the moon was first reported as June 1969 in this Associated Press story. It happened in July 1969.
Gov. Dennis Daugaard has asked that all flags be flown at half-staff in South Dakota on Friday in honor of former astronaut Neil Armstrong.
Armstrong was the first person to walk on the moon on July 20, 1969. He died on Saturday. He was 82.
Daugaard says he's asking all flags to be at half-staff from 8 a.m. to sunset at the request of President Obama.
This article has been revised to reflect the following correction: