Space Exploration Day is observed every year on ________ date ?

(a) 18 July
(b) 19 July
(c) 20 July
(d) None of these

The annual holiday commemorates the anniversary of the first manned mission to the Moon. On July 20, 1969, Americans astronauts Neil Armstrong and Buzz Aldrin became the first humans to step foot on the surface of the Moon. In 1984, the day was proclaimed a holiday by United States President Ronald Reagan.