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
Comparison of Star Trek and Star Wars mutual to both franchises. "Star Wars" has not produced any live-action television series while "Star Trek" has produced seven live-action television series. "Star Trek" likewise has not produced any television films; whereas "Star Wars" has produced at least three live-action television films outside the "Star Wars" film saga. The "Star Wars Holiday Special", "" and "" are all live-action television spin-off films set in the "Star Wars" universe, but not considered part of the official "Star Wars canon". Aside from both having the word "star" in their titles, the two franchises share many similarities and commonalities. Both franchises have their