The simple answer : 3 people (eh,astronauts).
Apollo 14 conducted many scientific experiments. Information on these can be found at the below link.
The Apollo mission 14 launch date was January 31, 1971.
Apollo 14
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To EXPLORE.
Apollo 14 was launched on January 31, 1971. This mission was the third crewed mission to land on the moon and was commanded by astronaut Alan Shepard.
Apollo 12, the second moon landing mission, launched on November 17th 1969 (it landed on the moon on November 19).
The lunar module used during the Apollo 14 mission was named "Antares".
Yes, Apollo 14 was important as it was the eighth crewed mission in NASA's Apollo program and the third to land on the Moon. The mission successfully demonstrated precision landing capabilities and conducted scientific experiments on the lunar surface.
There were a total of 19 Apollo missions: Apollo-1A : Unmanned suborbital flight Apollo - 2 : Unmanned orbital flight Apollo - 3 : Unmanned suborbital flight Apollo - 1 : Manned orbital mission, cancelled due to fatal accident. Apollo - 4 : Unmanned orbital flight Apollo - 5 : Unmanned orbital flight Apollo - 6 : Unmanned orbital fligth Apollo - 7 : Manned orbital mission Apollo - 8 : Manned lunar orbit mission Apollo - 9 : Manned orbital mission Apollo -10 : Manned lunar orbit mission Apollo- 11 : Lunar Landing mission Apollo- 12 : Lunar Landing mission Apollo- 13 : Lunar Landing mission, aborted due to accident Apollo- 14 : Lunar Landing mission Apollo- 15 : Lunar Landing mission Apollo- 16 : Lunar Landing mission Apollo- 17 : Lunar Landing mission Apollo -18 : Space rendevous mission with Soviet Soyuz spacecraft (Apollo-Soyuz)
The other landing missions were Apollos 12, 14, 15, 16, and 17. Apollo 13 was supposed to be a landing mission but the accident prevented that from ocurring.
The Apollo program consisted of a total of 17 missions, out of which 6 of them landed humans on the Moon successfully. These missions were Apollo 11, 12, 14, 15, 16, and 17.