- The Shamrock Shake’s history dates back to the late 60s. It was first created in 1967 by Hal Rosen, a McDonald’s owner and operator in Connecticut who blended together mint milkshakes for St. Patrick’s Day celebrations.
- In 1974, shake sales helped fund the very first Ronald McDonald House in Philadelphia, Pa.
- The effort started when the 3-year-old daughter of Philadelphia Eagles football player Fred Hill was being treated for leukemia at a local children’s hospital.
