Question: What was the first manned spacecraft to orbit another body?
About the article "NASA", section "Project Apollo (1961–72)".

Candidate passages:
Past and present spacecraft.
Manned spacecraft.
As of 2011, only three nations have flown manned spacecraft: USSR/Russia, USA, and China.
India, Japan, Europe/ESA, Iran, South Korea, North Korea, Denmark, and Romania have plans for manned spacecraft (for manned suborbital rockets).
The first manned spacecraft was Vostok 1, which carried Soviet cosmonaut Yuri Gagarin into space in 1961, and completed a full Earth orbit.
There were five other manned missions which used a Vostok spacecraft.
The second manned spacecraft was named "Freedom 7", and it performed a sub-orbital spaceflight in 1961 carrying American astronaut Alan Shepard to an altitude of just over .
There were five other manned missions using Mercury spacecraft.
Other Soviet manned spacecraft include the Voskhod, Soyuz, flown unmanned as Zond/L1, L3, TKS, and the Salyut and "Mir" manned space stations.
Other American manned spacecraft include the Gemini Spacecraft, Apollo Spacecraft, the Skylab space station, and the Space Shuttle with undetached European Spacelab and private US Spacehab space stations-modules.
China developed, but did not fly Shuguang, and is currently using Shenzhou (its first manned mission was in 2003).
Except for the space shuttle, all of the recoverable manned spacecraft were space capsules.
The International Space Station, manned since November 2000, is a joint venture between Russia, the United States, Canada and several other countries. 
On March 23, 1965 at 15:57:00 UTC, at the end of the first orbit, over Corpus Christi, Texas, a 1 minute 14 second burn of the orbit attitude and maneuvering system (OAMS) engines gave a delta-V of 15.5 meters per second; which was the first orbital maneuver by any manned spacecraft.
The orbit was changed from x , period 88.3 minutes to an orbit of x , period 87.8 minutes. 
Vostok 3 (, "Orient 3" or "East 3") was a spaceflight of the Soviet space program intended to determine the ability of the human body to function in conditions of weightlessness and test the endurance of the Vostok 3KA spacecraft over longer flights.
Cosmonaut Andrian Nikolayev orbited the Earth 64 times over nearly four days in space, August 11–15, 1962, a feat which would not be matched by NASA until the Gemini program (1965–1966).
Vostok 3 and Vostok 4 were launched a day apart on trajectories that brought the spacecraft within approximately of one another.
The cosmonauts aboard the two capsules also communicated with each other via radio, the first ship-to-ship communications in space.
These missions marked the first time that more than one manned spacecraft was in orbit at the same time, giving Soviet mission controllers the opportunity to learn to manage this scenario. 
Healey was expected to set precedents in guiding a nearly perfect spacecraft through the factory.
Many doubted, Bergen later said, that the recovery could be made in a reasonable time because "everything had come to a screeching halt."
Bergen credited the assignment of Borman and his group, and Healey's performance as manager of spacecraft as the keys to getting command module production back into line.
When the command module (Block II Apollo CSM-101) arrived at the Cape (May 1968), the receiving inspectors found fewer discrepancies than on any spacecraft previously delivered to Kennedy space center.
By the end of the program, Healey was Rockwell's VP for Apollo and Stage II of the Saturn V rocket.
Apollo 7 (October 1968), the first manned Apollo mission, was a test flight and confidence-builder with the extensively redesigned command module.
Schirra, who would be the only astronaut to fly Mercury, Gemini and Apollo missions, commanded this Earth-orbital shakedown of the command and service modules (with Donn Eisele and Walt Cunningham).
The Apollo hardware and all mission operations worked without any significant problems and Schirra and Healey remained lifelong friends.
Apollo 8 (December 1968), was the first manned spacecraft to orbit another celestial body.
Apollo 11 (July 1969), was the first landing of a man on the surface of the moon.
Apollo 17 (December 1972), was the last of the Apollo missions.
It marks the last moonwalk and also the last manned mission beyond low Earth orbit. 
The United States National Space Science Data Center catalogued 157 spacecraft placed into orbit by launches which occurred in 1968.1968 saw the first manned Apollo missions first to Low earth orbit in which was a success.
Humanity for the first time left LEO with Apollo 8 to circumnavigate the moon which was a success.