Short answers, pulled from the story.
Jebel Irhoud in Morocco holds the earliest geographical evidence of a human settlement. Eight early modern human remains date back to the Middle Paleolithic around 300,000 years ago.
The huts were built from mud and branches around 17,000 BC. They now lie underwater as the water level rose over time.
45% of the world's 8.2 billion people live in cities today. This figure represents an increase from 20% in 1950.
Megacities with populations over 10 million reached 33 in 2025. This number has quadrupled since 1975.
Canada uses populated place in the Atlas of Canada without defining it. Statistics Canada refers to historically named locations as localities.