There is a seven letter word in the English language that contains ten words without rearranging any of its letters, "therein": the, there, he, in, rein, her, here, ere, therein, herein.

Construction on the Leaning Tower of Pisa began on August 9th, 1173.

Post-It Notes, which are adhesive notes, were invented while looking for a way to improve the acrylate adhesive found in tapes.

AMAZING FACTS