Viking 1 landed on Mars in July 1976.
Mars
NASA's Viking 1 and Viking 2 landed on Mars in 1976.
viking 1
The first spacecraft to land successfully on Mars was Viking 1 in 1975
It was Mars 2, from the Soviet Mars Lander Program.
Mars. Viking 1 and Viking 2 both landed on the planets surface in 1976.
First ever satellite to land on the planet Mars was a Russian probe called Mars 2. Albeit it did not land but crashed. The first successful probe to land on Mars was Mars 3 sent by the Russians, however the probe was operational for 15 minutes after landing on Mars. The first American probe to land on Mars was the Viking 1 on the 20th of July 1976.
No Viking landed on the Moon. They landed on Mars. Look the program up on Wikipedia, it's pretty interesting.
The first man made probes to successfully land on the surface of Mars were two Soviet probes; Mars 2 on November 27 and Mars 3 on December 2, 1971, but both ceased communicating within seconds of landing. The NASA Viking program had two landers; Viking 1 remained operational for six years, Viking 2 for three years after their 1976 landing.
The first United States spacecraft to land on Mars was Viking 1 on June 19, 1976. It was followed by Viking 2 on September 3, 1976.
Viking I