Star Wars Day on May 4, 1979, the day Margaret Thatcher took office as Prime Minister of the United Kingdom. An online news article from the Danish public broadcaster says her political party, the Conservatives, placed a congratulatory advertisement in "The London Evening News", saying "May the Fourth Be with You, Maggie. Congratulations." The saying was used in a UK Parliament defence debate on May 4, 1994. Astrophysicist and author Jeanne Cavelos used the saying on page 94 of her 1999 book "The Science of Star Wars". In 2008, the first Facebook groups appeared, celebrating "Luke Skywalker Day," with the same catchphrase. While
Star Wars "Jaws", "Star Wars" started the tradition of the summer blockbuster film in the entertainment industry, where films open on many screens at the same time and profitable franchises are important. It created the model for the major film trilogy and showed that merchandising rights on a film could generate more money than the film itself did. The "Star Wars" saga has inspired many fans to create their own non-canon material set in the "Star Wars" galaxy. In recent years, this has ranged from writing fan fiction to creating fan films. In 2002, Lucasfilm sponsored the first annual Official "Star Wars"