It was first used in 1598
it lost popularity due to the fact that it was confusing after a while and was useless
1. there are quotes and they are talking past tense on one singular person
Population I stars are consisting of younger stars, clusters and associations that formed aroung 1,000,000 to 100,000,000 years ago, which such stars classified as type O and B are called extreme Population I stars. The members of this population occur near and in the arms of our own galaxy, the Milky Way.
