Iceberg Drive Inn - In 1922, Walgreens employee Ivar "Pop" Coulson made a milkshake by adding two scoops of vanilla ice cream to the standard malted milk drink recipe | Facebook
![Tiger Cool Express on Twitter: "Ivar “Pop” Coulson made milkshakes mainstream in 1922. His first flavor created? Chocolate! #NationalMilkshakeDay #WeShipThat https://t.co/e83bmCXjPr" / Twitter Tiger Cool Express on Twitter: "Ivar “Pop” Coulson made milkshakes mainstream in 1922. His first flavor created? Chocolate! #NationalMilkshakeDay #WeShipThat https://t.co/e83bmCXjPr" / Twitter](https://pbs.twimg.com/media/DJjkf64X0AQD3R8.jpg)
Tiger Cool Express on Twitter: "Ivar “Pop” Coulson made milkshakes mainstream in 1922. His first flavor created? Chocolate! #NationalMilkshakeDay #WeShipThat https://t.co/e83bmCXjPr" / Twitter
![In 1885, The Term “Milkshake” First Showed Up In Print. It Contained Whiskey - South Florida Reporter In 1885, The Term “Milkshake” First Showed Up In Print. It Contained Whiskey - South Florida Reporter](https://southfloridareporter.s3.amazonaws.com/wp-content/uploads/2020/06/19191705/vanilla-milkshake.jpg)