New York times front page article (almost) exactly 49 years ago: Text: Men Walk On Moon Astronauts Land On Plain; Collect Rocks, Plant FlagA Powdery Surface Is Closely Explored By John Noble Wilford Houston, Monday, July 21--Men have landed and walked on the moon. Two Americans, astronauts of Apollo 11, steered their fragile four-legged lunar module safely and smoothly to the historic landing yesterday at 4:17:40 P.M., Eastern daylight time. Neil A. Armstrong, the 38-year-old