Mr. Smarty Pants Knows

Humans have produced 9.1 billion tons of plastic since 1950, and most of it is sitting in our environment, according to a recent study published in Science Advances.

Judge Marion W. Gooding attended Elvis Presley's August 1956 shows in Jacksonville, Fla., to monitor if his gyrations were obscene.

According to the Arkansas Secretary of State, the design of the state flag, approved by the Legislature in 1913, had only three blue stars, to represent: The year of the Louisiana Purchase (1803), it was the third state created from the purchase, and the fact that the state had belonged to three countries (France, Spain, and the United States). In 1923, legislators added a fourth star to acknowledge Arkansas' membership in the Confederacy.

Watermelon has less sugar per serving than grapes, apples, or pears. Lore has it that watermelon was put in King Tut's grave for energy and hydration in the afterlife.

Apes and humans have 32 permanent teeth. Cats have 30, and dogs have 42.