The four-color theorem states any map can be colored with just four colors so no adjacent regions share a color.
Fact #8538
👍 0 · 👎 0
More General Facts
Humans use heuristics to make quick decisions.
Fact #975 · General
The spotlight effect causes people to overestimate how much others notice them.
Fact #1486 · General
The Voting Rights Act of 1965 prohibited racial discrimination in voting.
Fact #1103 · General
A falcon can dive at speeds over 200 mph.
Fact #412 · General
Humans are naturally wired for social interaction.
Fact #969 · General
Nothing can travel faster than light in a vacuum.
Fact #1863 · General
Petra in Jordan was carved into rose-colored rock cliffs.
Fact #1635 · General
Sinkholes can form when underground rock dissolves.
Fact #827 · General
Want more facts?
We have over 11,441 facts across 15 categories.