Wikipedia:Vital articles
History of the world
Modern history
Timeline of the 20th century
Timeline of the 21st century
Megalopolis
History of science
Geologic time scale#Terminology
Animal#Numbers and habitats
Mammal#Molecular classification of placentals
Primatomorpha
Primate
Timeline of human evolution#Homo
Mathematics
Modern physics#Hallmarks
Quantum Mechanics
