During and after World War II, Alabama’s economy diversified with new industries, leading to economic growth.

Alabama ranks fifth in the nation for the diversity of its flora, with nearly 4,000 pteridophyte and spermatophyte plant species.

By 1860, Alabama’s population had increased to 964,201 people, of which nearly half, 435,080, were enslaved African Americans, and 2,690 were free people of color.

Of the 383 mollusk species, 113 have never been collected outside of Alabama.

Alabama’s population increased from under 10,000 people in 1810 to more than 300,000 people by 1830.

3.2% of Alabama’s area is water.

Alabama has very hot summers with high temperatures averaging over 90 °F (32 °C) in some parts of the state and mild winters.

Organized insurgent groups in Alabama included The Ku Klux Klan, the Pale Faces, Knights of the White Camellia, Red Shirts, and the White League.