Tags: Holiday.
National Paper Airplane Day is an unofficial observance celebrated on June 21 each year in the United States to commemorate the simple aeronautical toy.Paper airplane day celebrations typically include social gatherings at which participants create and fly paper airplanes. These events often feature contests in two basic flight categories: distance and time in air. As of 2012 Takuo Toda holds the world record for the longest time in air (27.9 seconds).