news.minnesota.publicradio.org

neXMr TIL the Minnesota Mining and Manufacturing Company (3M) was founded in 1902 when five men believed they had secured a valuable corundum mine. They later realized their mineral holding was entirely anorthosite, a mineral devoid of corundum and useless to their venture.
wLjgY TIL that later in life an Alzheimer stricken Ronald Reagan would rake leaves from his pool for hours, not realizing they were being replenished by his Secret Service agents
BZjD TIL that when Ronald Reagan was suffering from Alzheimer’s he used to rake the leaves out of his family pool, not knowing that his secret service men were replenishing the leaves.