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TIL that while primarily attributed to the punishment of Germany, the Treaty of Versailles also established a universal concert pitch due to longstanding debates regarding the frequency which orchestras should tune to.

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ZjLG TIL that Dallas Mavericks owner Mark Cuban said that the manager of officials of the NBA “wouldn’t be able to manage a Dairy Queen.” Dairy Queen was offended by this and invited him to manage a Dairy Queen for a day. Cuban accepted the company’s invitation and worked for a day at a Dairy Queen
xVNdw TIL Clownfish are covered in a layer of mucus which acts as a protective shield from the harmful tentacles of anemones, giving them immunity to stinging tentacles
xVxJo TIL: Martha Washington lived in "The White House", a plantation owned by her first husband, John Custis. The actual White House was finished and first occupied by President John Adams, and was first actually called the "White House" by Teddy Roosevelt.
won5J TIL that the earliest form of sushi originated on the Mekong River (parts of Laos, Thailand, and Vietnam) between the 5th and 3rd centuries BC. To prevent the fish spoiling in the heat they were gutted packed with glutinous rice and stored in barrels. It spread to China and then Japan.
6pY7 TIL the metal band of a Mason Jar is suppose to be removed for storage to prevent residual water between the jar threads and the lid from rusting the band. If the jar seal is properly formed, internal vacuum will keep the lid tightly on the jar.