What Is The Only State Flag That Is Two-Sided?

Did You Know!

Earth has experienced 5 mass extinctions.

The first mass extinction happened as early as 444 million years ago, called the Ordovician-Silurian extinction. The subsequent mass extinctions are Late Devonian extinction, Permian-Triassic extinction, Triassic-Jurassic extinction, and Cretaceous-Paleogene extinction.

Now, are we in the sixth mass extinction?