National Paper Airplane Day (USA) takes place on May 26 every year to honor the simple aeronautical toy that has been around for thousands of years.
Legend has it flying paper airplanes originated 2,000 years ago in China.
The largest paper aircraft had a wingspan of 59.74 ft. It was built in Germany on 28th September 2013.
Joe Ayoob recorded the longest distance flown by a paper airplane in February 2012. His plane flew 226 feet, 10 inches.
There are more, many more, than one way to fold paper for an airplane. Here is a URL to a website showing many ways to do it: www.foldnfly.com.
This information is from https://nationaldaycalendar.com/national-paper-airplane-day-may-26/