There are particular rules on how to title the moon's craters
Craters on the Moon appeared due to the celestial bodies that collapsed into its surface. More than 300 thousands of the craters can be found on the visible side of the Moon.
The craters are named after the famous scientists and people who made something great on Earth. There can be found craters of astrologists, mathematicians, philosophers of different historical periods of Earth.
The tradition of entitling the craters with the names of people comes from the 17th century and Michael van Langren, Belgian engineer, who created his own lunar surface map and named crater after the name of his king - Phillip IV of Spain and some other kings and influential people of his time. This tradition was welcomed and continued for a certain period.
Some time later, Giovanni Battista Riccioli from Bologna made up his map of the Moon. He decided to change the names of the craters given by Van Langren and titled this craters with the names of the greatest astronomers, and this type of names is very popular today. The first book with names on the lunar surface was issued in 1939 in Britain, enumerating the names of the lunar surface by International Astronomic Union.
Nowadays the IAU still decides the titles for craters on the satellite, as well as titles for many astronomical objects. The IAU creates the title of every celestial object taking into account a certain topic.
The titles of the craters nowadays can be divided into two groups. The first group contains names of already passed scholars, investigators, researchers, who are well known for their achievements in particular field. The second group includes the craters near the Apollo and the Mare Moscoviense. They are dedicated to famous and deceased American astronauts and Soviet cosmonauts.